- Audio Fidelity, Steel Works Siren Warning Bell And Tapping (Heard from Series 5-7; used for the Smelters Shed.)
- BBC Records, Swanee Whistles - 3 Warbling Whistles-Up & Down (Heard in a high pitch in Series 6 and 7.)
- Diesel Horn (Used for Diesel's horn in a normal pitch, with Daisy's and Mavis' in a high pitch, and BoCo's and Daisy's in a low pitch.)
- Duck Whistle (Used for Duck's and Gordon's whistle in a normal pitch, James', Henry's and George's whistle in a high pitch, and Donald's, Douglas', and Oliver's in a low pitch.)
- Edward Whistle (Used for Edward's and Percy's Ghost Engine whistle in a normal pitch, Percy's, Toby's, and Rusty's Ghost Engine in a high pitch & Henry's, and Edward's 4th series whistle in a low pitch.)
- Elektra Records, Blizzard/Sound Ideas, WIND - SIBERIAN WIND, WEATHER (Heard once in "Thomas and Percy's Christmas Adventure".)
- Gordon Whistle
- Hollywoodedge, Air Brake Hiss Truck PE079201
- Hollywoodedge, Big Metal Clangthud CRT031902 (Heard once in "No Sleep for Cranky".)
- Hollywoodedge, Big Metal Clangthud CRT031903 (Heard twice in "Special Funnel".)
- Hollywoodedge, Bird Hawk Single Scre PE020801/Hollywoodedge, Hawk Screech Single AT082901 (Heard once in "Bulldog".)
- Hollywoodedge, Bird Rooster 2 Crow PE021501 (Heard once in "Toby's Discovery".)
- Hollywoodedge, Body Falls Water Spla PE106801 (Low volume; heard once in "Toby's Tightrope".)
- Hollywoodedge, Bubbles Gurgling Up PE052701 (Heard once in "Diesel Does it Again" and "Trust Thomas".)
- Hollywoodedge, Bull Roar Medium Pers PE022301 (Heard once in a low pitch in "Faulty Whistles" and twice in "Percy Gets It Right".)
- Hollywoodedge, Cans Crash Floor Rol CRT033403/Sound Ideas, CRASH, CANS - FALLING CANS (Heard once in "Paint Pots and Queens".)
- Hollywoodedge, Car Crash Roll 1 SS010201 (Heard once in "James and the Trouble with Trees".)
- Hollywoodedge, Car Crash SS010101 (Heard from Series 4-6; used often for crashes.)
- Hollywoodedge, Cartoon Head Bonk Twe SS016801 (Heard once in "Faulty Whistles".)
- Hollywoodedge, Chickens Clucks Farm AT084301 (Heard twice in "Bulgy Rides Again".)
- Hollywoodedge, Crash Car Flip Imp Rol PE111501 (Heard from Series 4-7; used often for crashes.)
- Hollywoodedge, Crash Metal Shatter PE110401 (Heard once in "Trucks!".)
- Hollywoodedge, Crash Train Car Mix PE111601 (Heard once in "Trucks!" on opposite audio channels.)
- Hollywoodedge, Elephant Trumpet Gro AT044102 (Heard once in "Henry and the Elephant".)
- Hollywoodedge, Garbage Truck Dumps PE270401 (Crash element only; heard once in "Percy's Chocolate Crunch", when the coal chute at Brendam Docks drops a load of coal on top of Percy.)
- Hollywoodedge, Goat Single Short Ble AT044603 (Heard once in "Edward, Gordon and Henry".)
- Hollywoodedge, Gooey Splat CRT052405 (Heard once in "Paint Pots and Queens", "James and the Queen of Sodor" and "The Spotless Record" and thrice in "Percy's Chocolate Crunch".)
- Hollywoodedge, Head Bonk Wbell Drum CRT031901 (Heard once in an extremely low volume in "Lady Hatt's Birthday Party" and "No Sleep for Cranky".)
- Hollywoodedge, Horn Morris 8 Circa 1938 EE064801 (Used as Sir Topham Hatt's Car and Bulgy's horns.)
- Hollywoodedge, Large Splash Or DiveW PE127201 (Heard in "Busy Going Backwards" and "Duncan Gets Spooked".)
- Hollywoodedge, Medium Exterior Crow PE140401 (Heard once in "Three Cheers for Thomas", and "Harold and the Flying Horse")
- Hollywoodedge, Medium Exterior Crow PE140501 (Heard once in "Rusty to the Rescue" in the US dub.)
- Hollywoodedge, Metal Being Crushed PE1054511 (Heard in a slightly higher pitch multiple times in "Thomas Comes to Breakfast" and "Edward's Exploit," and once in a much higher pitch in "A Close Shave," as well as often when a coupling is being strained in later seasons.)
- Hollywoodedge, Metal Creaks Machine FS015801 (Heard multiple times throughout Seasons 4-7; used for engines.)
- Hollywoodedge, Metal Scrapes 1 SS010301 (Heard in "Trucks".)
- Hollywoodedge, Model A Start Idle Wb CRT055005 (Used for when a diesel or something else breaks down in Series 4-7.)
- Hollywoodedge, Rope Snap Swish 1 SS011001 (Heard throughout Seasons 4-6 when a coupling snaps.)
- Hollywoodedge, Short Rapid Hits Wsm CRT020401 (Heard once in "Henry and the Elephant".)
- Hollywoodedge, Sheep Baa Medium Pers PE027001
- Hollywoodedge, Thin Metal Clang CRT031701 (Heard once in "Fish".)
- Hollywoodedge, Wood Break Or Shatter PE113401 (Heard once in "Percy, James and the Fruitful Day".)
- Hollywoodedge, Wood Squeaks 1 SS011101 (Heard in "Haunted Henry" and "Elizabeth the Vintage Lorry"/"Elizabeth the Vintage Quarry Truck".)
- Hollywoodedge, Wood Squeaks 2 SS011102 (Heard in "Haunted Henry".)
- Hollywoodedge, Wood Squeaks 3 SS011103 (Heard in "Haunted Henry".)
- James Whistle (Used for James' whistle in a normal pitch.)
- Korg GM Bell Tree Sound (Heard in "Percy and the Haunted Mine", "Jack Frost" and "Toby Had a Little Lamb".)
- Percy Whistle
- Pro Sound Effects, Owl, Hoots, Whistling, Quivering Call/Sound Ideas, Owl - Single Owl Hoots
- Pro Sound Effects, Seagulls and Crows, Birdcalls, Squawks, Screeches, Cries, CU
- Pro Sound Effects, Train, Electric, Exterior, Door Close, Horn Toots, Pull Away, Rail Low Light Clatter (Used as Mavis' horn from seasons 3 in a high pitch and BoCo's horn from said season in a low pitch.)
- SKYWALKER, METAL - THOMAS' TRUCKS CLANGED AND SHUNTED
- Sound Ideas, AIRPLANE, SINGLE PROP - EXT: PASS BY OVERHEAD 02 (Heard once in "Percy and Harold".)
- Sound Ideas, AIRPLANE, SINGLE PROP - EXT: PASS BY OVERHEAD 03 (Heard twice in "Percy and Harold".)
- Sound Ideas, ALARMS - BURGLAR ALARM - BELL (Heard once in "Thomas & Stepney".)
- Sound Ideas, AMUSEMENT PARK - AMUSEMENT PARK, FAIRGROUND, ENVIRONMENT, AMBIENCE, HUM OF VOICES, DIGIFFECTS (Heard twice in "Toby's Discovery" and "Make Someone Happy".)
- Sound Ideas, APPLAUSE, CHEERING - INDOOR: MEDIUM CROWD IN SCHOOL AUDITORIUM, AUDIENCE 02 (Heard once in "Three Cheers for Thomas".)
- Sound Ideas, AUTO, BACKFIRE - OLD AUTO BACKFIRING (H-B) (Used as a crash sound in "Harvey to the Rescue".)
- Sound Ideas, AUTO, CARTOON - CRASHY AUTO LANDING (Heard from Series 5-7.)
- Sound Ideas, AUTO, CRASH - CRASHES AND ROLLS DOWN EMBANKMENT (Heard once in "The Flying Kipper" and "Dirty Objects".)
- Sound Ideas, AUTO, HORN - OLD CAR, HAND AIR HORN (Used for Caroline and Bertie's horn.)
- Sound Ideas, AUTO, SKID - BRAKE SKID, TIRE 02 (Heard once in "Lady Hatt's Birthday Party".)
- Sound Ideas, AUTO, SKID - TIRE SKID 01 (Heard once in "Bertie's Chase" and "Better Late Than Never" and twice in "Horrid Lorry".)
- Sound Ideas, BELL, CHURCH - RINGING (Heard once in "Percy and the Signal" and once in "Thomas and Percy's Christmas Adventure".)
- Sound Ideas, BIRD, RAVEN, COMMON - CALLS, OTHER BIRDS IN B/G, ANIMAL (Heard once in "Granpuff" and "Sleeping Beauty".)
- Sound Ideas, BIRD, SEAGULLS - CHIRPING, ANIMAL (Can be heard in the background for harbors/docks in episodes from Season 2.)
- Sound Ideas, BIRD, SEAGULL - SEAGULLS IN FLIGHT ALONG CLIFF, ANIMAL (Can be heard in the background for harbors/docks in "Percy Takes the Plunge" and several episodes of Season 3.)
- Sound Ideas, BIRD, TAWNY OWL - BIRD, OWL, TAWNY OWL, DIGIFFECTS (Heard once in "Rusty to the Rescue".)
- Sound Ideas, BIRD, TAWNY OWL - TAWNY OWL, STRIX ALUCO, BIRD, DIGIFFECTS (Used from Seasons 4-7, heavy use for nighttime.)
- Sound Ideas, BIRDS, FARM - ROOSTERS, COW, BIRDS IN B/G, ANIMAL (Select cattle sounds each heard twice in "Cows".)
- Sound Ideas, BIRDS, VARIOUS - RESIDENTIAL AMBIENCE, EARLY MORNING, COUNTRY 01 (Can sometimes be heard in the background in episodes from Season 4.)
- Sound Ideas, BOAT, TUG - AIR HORN: THREE BLASTS, MARINE
- Sound Ideas, BOING, CARTOON - HOYT'S BOING (Lower pitch; heard once in "Lady Hatt's Birthday Party" when George loses control.)
- Sound Ideas, BOING, CARTOON - SPROING 01 (Heard once in "Duncan Gets Spooked" when the trucks break away.)
- Sound Ideas, BRITISH BIRDS - BLACKBIRD (TURDUS MERULA) WITH QUIET TOWN GARDEN, DAWN CHORUS AND OCCASIONAL DISTANT CAR (BRISTOL 4.7.81) (Heard once in "Saved from Scrap" and "Thomas and Trevor".)
- Sound Ideas, BRITISH BIRDS - COMMON GULLS (LARUS CANUS) CALLS OF 10 PAIRS AT BREEDING COLONY, WITH LAPPING WATER (SCOTLAND)
- Sound Ideas, CARTOON, BIRD - CHIRPING, ANIMAL 02 (Heard in a high pitch in "Thomas and the Special Letter" after Thomas crashes into the wall.)
- Sound Ideas, CARTOON, BOING - SPACE BOING, HIGH (Heard once in "Buzz Buzz".)
- Sound Ideas, CARTOON, DUCK - CHUCKLING DUCK, ANIMAL, BIRD (Heard often in "Donald's Duck".)
- Sound Ideas, CARTOON, DUCK - QUACKING, ANIMAL, BIRD 02 (Heard often in "Donald's Duck".)
- Sound Ideas, CARTOON, WHISTLE - REFEREE'S WHISTLE, SINGLE (Heard once in "Harold and the Flying Horse".)
- Sound Ideas, CAT - CAT MEOWING, 3 VERSIONS, ANIMAL, DIGIFFECTS (1st meow, heard once in "Bad Day at Castle Loch", and 2nd meow, heard once in "Snow Engine", when Sir Topham Hatt's pet cat meows, after he had turned on the lights in his office.)
- Sound Ideas, CHAIN - CHAIN FALLING ON METAL 02 (Heard in "Scaredy Engines".)
- Sound Ideas, CHICKEN - BARNYARD, C.U. CLUCK, SQUAWK, FLAP, ANIMAL, BIRD (Heard once in "Bye George!", "Gordon Takes a Tumble" and in "Bulgy Rides Again".)
- Sound Ideas, CHILDREN - CHEERING, CROWD 01 (Heard once in "Thomas and Trevor".)
- Sound Ideas, CHILDREN - CHEERING, CROWD 02 (Heard once in "Saved from Scrap".)
- Sound Ideas, CONSTRUCTION, AMBIENCE - HEAVY MACHINERY, VOICES, HAMMERING (Used throughout Season 1.)
- Sound Ideas, CONSTRUCTION, CRANE - SHIPS, CAPSTAN WORKING, VOICES, CONSTR. (Heard once in "The Flying Kipper".)
- Sound Ideas, CONSTRUCTION, CRANE - START, IDLE (Mainly used for Cranky.)
- Sound Ideas, COW - CALVES, MOOING, IN BARN, ANIMAL, DIGIFFECTS (Heard once in a low volume in "Granpuff" and often in "Bulls Eyes".)
- Sound Ideas, CRASH, AUTO - AUTO APPROACH, SKID AND CRASH, CARTOON (Lower pitched; heard once in "Horrid Lorry" and "Percy's Chocolate Crunch".)
- Sound Ideas, CRASH, CARTOON - BIG CAR CRASH
- Sound Ideas, CRASH, CARTOON - SHORT IMPACT CRASH (Heard once in "It's Only Snow".)
- Sound Ideas, CRASH, WOOD - LARGE WOOD CRUNCH 02 (Heard once in "Percy, James and the Fruitful Day".)
- Sound Ideas, DOOR, JAIL - SLIDE CLOSED, CELL 01 (Heard twice in "Fergus Breaks the Rules".)
- Sound Ideas, DOOR, JAIL - SLIDE OPEN, CELL 01 (Heard once in "Scaredy Engines" and "James and the Queen of Sodor".)
- Sound Ideas, DRAWBRIDGE - CHAINS HOISTING BRIDGE OPEN, CASTLE (Heard once in "Haunted Henry", and can sometimes be heard for turntable's turning in a slightly lower pitch.)
- Sound Ideas, ELECTRICITY, SPARK - HIGH VOLTAGE SPARK, VERY LARGE, ELECTRICAL (Heard 7 times in "Scaredy Engines", once in "James and the Queen of Sodor" and 6 times in "Fergus Breaks the Rules".)
- Sound Ideas, ELEPHANT - VARIOUS SNORTS, GROWLS, TRUMPETS, ANIMAL (Heard 5 times in "Henry and the Elephant".)
- Sound Ideas, ENGINE, STEAM - TRACTION ENGINE, BLOWS HOOTER (Used as Fergus' whistle.)
- Sound Ideas, FARM, TRACTOR - START, IDLE, STOP, IN BARN (Used for Terence's motor)
- Sound Ideas, FIREWORKS - MORTARS LAUNCHING FIREWORKS INTO SKY, SCREAMERS AND EXPLOSIONS OVERHEAD ENDING WITH LARGE BANG (Heard once in "Scaredy Engines".)
- Sound Ideas, FIREWORKS - SMALL FIREWORK LAUNCHED, WHISTLE 02 (Heard once in "Faulty Whistles" when Duncan's whistle is launched into the air.)
- Sound Ideas, FOREST, DAY - BIRDS, INSECTS, DISTANT TRAFFIC AMBIENCE (Heard in "A Bad Day for Harold the Helicopter".)
- Sound Ideas, FOREST, DAY - BIRDS, LIGHT BREEZE, TRAFFIC RUMBLE IN B/G AMBIENCE (Generally used for nighttime ambience. Heard from Seasons 4-7.)
- Sound Ideas, FOREST, DAY - FOREST ENVIRONMENT, AMBIENCE, SUMMER, BIRDS, LIGHT BREEZE, DIGIFFECTS
- Sound Ideas, FRICTION & STRESS - SQUEAL: TRAIN BRAKING, DISTANT, HIGH SQUEALS (Heard when James is on the turntable in "Henry and the Elephant".)
- Sound Ideas, FROGS - 2-3 FROGS CROAKING, ANIMAL, AMPHIBIAN (Heard once in "Off the Rails" and in several episodes of Season 2.)
- Sound Ideas, GERMANY, TRAIN STATION - TRAIN STATION, GERMANY, PA AFTER 2:12, CONDUCTOR+S WHISTLE VERSION 3, DIGIFFECTS
- Sound Ideas, HARBOUR, CITY - HAMBURG, BUSY, HORNS, TUGS, WATER LAPS (Heard once in a normal pitch in "The Flying Kipper", and in a lower pitch in the background for harbors/docks throughout Season 2.)
- Sound Ideas, IMPACTS, VOCALS AND RHYTHMS - SLURP (Heard once in "Lady Hatt's Birthday Party" and "James and the Queen of Sodor".)
- Sound Ideas, LEVER, RATCHET - LARGE CRANK OR LEVER: RATCHETING, 10 TAKES (The 2nd half of the 9th take is used twice as Thumper's engine sound in "Rusty and the Boulder".)
- Sound Ideas, MINING, AMBIENCE - GENERAL AMBIENCE, INDUSTRY 03 (Heard in various instances throughout Season 2.)
- Sound Ideas, MINING, BIN - ORE BEING DUMPED INTO BIN, INDUSTRY (An edited version is heard several times in "Thomas, Percy, and the Coal.")
- Sound Ideas, MUD, SPLASH - GLOP FALLS ONTO MUD (Heard once in "James and the Queen of Sodor".)
- Sound Ideas, RAIN - LIGHT RAIN ON PORCH, WEATHER 02 (Heard from Series 5-7.)
- Sound Ideas, ROCKS, LANDSLIDE - SHORT, LONG, BOULDER & MIXED, AVALANCHE
- Sound Ideas, RURAL ATMOSPHERES - FARMSTEAD: SUMMER, EARLY MORNING WITH BLACKBIRD, WREN, ROBIN, ROOKS, WOODPIGEON, FERAL PIGEON, CHAFFINCH, HOUSE SPARROW, DISTANT PEACOCK AND SHEEP- DEVON MAY 81 (Heard from Seasons 4-6.)
- Sound Ideas, RURAL ATMOSPHERES - VILLAGE: LATE SPRING, EVENING WITH BLACKBIRD, WREN, ROOKS, CHAFFINCH, WOODPIGEON AND DISTANT DOG. CORNWALL - MAY 85 (Used from Seasons 4-7.)
- Sound Ideas, SCREAM - FEMALE, LONG, HUMAN, HORROR 02 (Heard twice in "Thomas, Percy and the Squeak" when Alicia Botti screams after seeing a mouse inside Clarabel.)
- Sound Ideas, SCREAM - FEMALE, LONG, HUMAN, HORROR 03 (Heard once in "Thomas, Percy and the Squeak" when Alicia Botti screams after seeing a mouse inside Clarabel.)
- Sound Ideas, SCREAM - FEMALE, LONG, HUMAN, HORROR 04 (Heard once in "Thomas, Percy and the Squeak" when Alicia Botti screams after seeing a mouse inside Clarabel.)
- Sound Ideas, SHEEP - ADULT CALLING, ANIMAL (Heard once in "Baa!".)
- Sound Ideas, SHEEP - SHEEP AND LAMBS, IN BARN, ANIMAL, DIGIFFECTS (Heard twice in "Toby Had a Little Lamb".)
- Sound Ideas, SHIP, BELL - TWO DOUBLE RINGS, MARINE, BOAT (Used as Toby's bell from Seasons 2-3 in a normal pitch, and Bulgy's bell in a very high pitch.)
- Sound Ideas, SHIP, HORN - BLAST, MARINE, BOAT 02 (Heard once in "Thomas and the Jet Engine".)
- Sound Ideas, SHIP, HORN - SHIPS HORN, 1 LONG BLAST, CLOSE, ALARM, DIGIFFECTS
- Sound Ideas, SHIP, WHISTLE - STEAM: TWO BLASTS, MARINE, BOAT, HORN
- Sound Ideas, SIREN, AIR RAID - AIR RAID SIREN, ALARM, DIGIFFECTS (Heard once in "Put Upon Percy".)
- Sound Ideas, SPLAT, CARTOON - PAINT FIGHT GLOP 01 (Heard once in "Lady Hatt's Birthday Party".)
- Sound Ideas, SPLAT, CARTOON - PAINT FIGHT GLOP 03 (Heard once in "Percy's Chocolate Crunch" in a lower pitch and "The Spotless Record" in it's normal pitch.)
- Sound Ideas, SPLAT, CARTOON - PAINT FIGHT GLOP 07 (Heard once in "The Spotless Record".)
- Sound Ideas, SWITCH - HEAVY LEVER SWITCH: SET 01 (Heard thrice in "Middle Engine" and once in "Thomas and the Jet Engine".)
- Sound Ideas, SWITCH - LARGE COMPRESSOR SERVO SWITCH: SINGLE 01 (Heard once in "Fergus Breaks the Rules".)
- Sound Ideas, SWITCH, LIGHT - LIGHT SWITCH, ON, OFF, VERSION 1, DIGIFFECTS (Heard once in "Snow Engine", when Sir Topham Hatt turned on the lights in his office.)
- Sound Ideas, TELEPHONE - ARGENTINEAN PHONE RINGS (Heard once in "Thomas in Trouble" and once in a low pitch in "Old Iron".)
- Sound Ideas, TELEPHONE, RING - TELEPHONE, RINGS, BELL, SHORT SIGNALS, DIGIFFECTS (Heard once in "Thomas and Stepney" and "Snow Engine".)
- Sound Ideas, THUNDER - LOUD THUNDER CRACK, WEATHER, RAIN 01/02 (Heard once in "Edward's Exploit" and once in "Percy's Promise".)
- Sound Ideas, TRACTOR, STEAM - IDLING AT NORMAL SPEED (Used as an engine sound on Elizabeth, and also used for Fergus' flywheel in "Bill, Ben and Fergus", "Salty's Stormy Tale", and for Ned in "A Friend in Need".)
- Sound Ideas, TRAIN, BRAKE - BRAKES SQUEAL (Heard in its normal pitch throughout Season 1, and in various pitches throughout Seasons 2-3.)
- Sound Ideas, TRAIN, DIESEL - ENGINE HOOTER, ONE BLAST (Used as Salty's horn in Season 6 only.)
- Sound Ideas, TRAIN, DIESEL - TRAIN, DIESEL, ARRIVING WITH HORN, ALARM, DIGIFFECTS (Heard once in "Rock 'n' Roll", "Double Teething Troubles", and "Stepney Gets Lost".)
- Sound Ideas, TRAIN, DIESEL - TRAIN, DIESEL, PASSING WITH HORN BLAST, ALARM, DIGIFFECTS (Heard once in "Rusty to the Rescue", "Bowled Out", and "Double Teething Troubles".)
- Sound Ideas, TRAIN, STEAM - TRAIN, STEAM LOCOMOTIVE, WHISTLE AND RIDE, DIGIFFECTS (Used once as Falcon's whistle in "Sleeping Beauty"; whistle only.)
- Sound Ideas, TRAIN, STEAM - ENGINE WHISTLE (GWR) 01 (Used as Arthur and Spencer's whistle.)
- Sound Ideas, TRAIN, STEAM - ENGINE WHISTLE (GWR) 02 (Used as Spencer's whistle.)
- Sound Ideas, TRAIN, STEAM - ENGINE WHISTLE (LMS) 01 (Used as Arthur and Murdoch's whistle.)
- Sound Ideas, TRAIN, STEAM - ENGINE WHISTLE (LMS) 02 (Used as Murdoch's whistle.)
- Sound Ideas, TRAIN, STEAM - ENGLISH STEAM LOCOMOTIVE WHISTLE: SHORT TOOT (Used as Emily's whistle in Season 7.)
- Sound Ideas, TREE FALLING - CREAKING, HIT GROUND HEAVILY, FOREST, LOGGING (Heard once in "Rusty Saves the Day" and "Faulty Whistles".)
- Sound Ideas, TRUCK, HORN, AIR - TWO BLASTS 01 (Heard once in "Double Teething Troubles", 8 times in "The Fogman" and once in "Buffer Bother"; used as Derek, the Railway Foghorn and Mavis' horn.)
- Sound Ideas, TRUCK, HORN, AIR - TWO BLASTS 02 (Used once as Derek's horn in "Double Teething Troubles".)
- Sound Ideas, TRUCK, MACK TRANSPORT - EXTERNAL: CITY HORN, DOUBLE BLAST (Used as Salty's horn.)
- Sound Ideas, WATER, SPLASH - BIG, 3 GIANT SPLASHES, WAVES (1st splash; heard once in "Special Attraction" and "Dunkin Duncan".)
- Sound Ideas, WHISTLE, FACTORY - STEAM WHISTLE: ONE BLAST, INDUSTRY 01 (Used as Smudger, Stepney and Stuart's whistles.)
- Sound Ideas, WHISTLE, SHIP - MEDIUM SIZED BOAT WHISTLE (2nd whistle, used once for Edward's Ghost Engine's whistle in "Scaredy Engines".)
- Sound Ideas, WHISTLE, STEAM - FACTORY WHISTLE, LARGE FACTORY (Can be heard in a higher pitch in "Home at Last".)
- Sound Ideas, WIND - EERIE WIND, WEATHER (Heard once in "Haunted Henry".)
- Sound Ideas, WIND - HEAVY, WEATHER (Heard in the US Dub of "Thomas and the Missing Christmas Tree".)
- Sound Ideas, WOOD, BREAK - BREAKING WOOD, WITH CROWBAR- CREAKING, DIGIFFECTS (Heard once in "Toby and the Flood" and "Busy Going Backwards" when Toad smashes through the crossing gates.)
- STEAM LOCOMOTIVE BRAKES SCREAMING (Very occasionally used throughout Seasons 5-7.)
- Thomas Whistle (Used for Thomas' whistle in a normal pitch and Bill's, and Ben's in a high pitch.)
- Toby Bell
- Unknown Crowd Cheering and Whooping Sound
- Unknown Glass Shatter Sound 07 (Heard thrice in "Thomas, Percy and the Squeak".)
- Unknown Siren Whistle Sound 02 (Heard in various pitches.) (Prior to this sound effect being used in Thomas & Friends, this sound effect was previously heard in You on Kazoo! (1989) (Videos) and Let's Sing-Along! (1990) (Videos).)
- Unknown Sound Effects Library, City Horn 11 (Used as Bertie's horn in a normal pitch and the green liquid in a low pitch.)
- Unknown Sound Effects Library, Train Horn 08 (Used as Rusty's horn in Seasons 4-7.)
- Unknown Sound Effects Library, Train Whistle 18 (Used as Skarloey's, Rheneas', Stepney's and Peter Sam's whistle in a normal pitch, Skarloey's in a high pitch.)
- Unknown Sound Effects Library, Train Whistle 22 (Used as Sir Handel's whistle in Series 4.)
- Unknown Sound Effects Library, Train Whistle 24 (Used as Duncan's whistle.)
- Valentino Ships Bell (5) (Used as Toby's bell in Seasons 2-3 in a normal pitch, and Bulgy's bell in a very high pitch.)