This show uses sound effects from The Premiere Edition Volume 1, The General Series 6000, Hanna-Barbera, Cartoon Trax Volume 1, Animal Trax, Series 2000 and Series 6000 Extension I.
- Bainbridge Records, Herd Of Cows Mooing (Heard in "It's About Time".)
- Dial-up Modem Sounds (Heard in "Robot Rumble".)
- Elektra Records, Factory Whistle/OMI, Noisemakers - Steam Whistle/Sound Ideas, WHISTLE, STEAM - FACTORY WHISTLE, LARGE FACTORY (Heard once in "Total Samesies".)
- Elektra Records, Happy Baby (Heard once in a high pitch in "Baby Baby Brent".)
- H-B PLINK, CARTOON - LOW PLINK
- Hollywoodedge, Baby Coo PE143901 (Heard once in a high pitch in "Baby Baby Brent".)
- Hollywoodedge, Baby Crying Screami TE2026901 (Used once in "Baby Baby Brent" for a African-American baby when it cries after Brent McHale took its bottle from it.)
- Hollywoodedge, Baby Crying Slowly PE144001 (Used occasionally for Cal as a baby crying; and for other babies as well.)
- Hollywoodedge, Baby Laughs GigglesS PE144701
- Hollywoodedge, Baby Laughs VariousS PE144601
- Hollywoodedge, Baby Sucking Pacifie PE145401 (Heard in "Baby Baby Brent".)
- Hollywoodedge, Baby Vocals Playful PE145101
- Hollywoodedge, Baby Whines Cries Huf PE145601 (Heard once in "Mayor or Mayor Not".)
- Hollywoodedge, Bells Desk Bell SS021003
- Hollywoodedge, Big Metal Clangthud CRT031902
- Hollywoodedge, Bird Hawk Single Scre PE020801/Hawk Screech Single AT082901 (Heard once in "The Sardemon".)
- Hollywoodedge, Cat Domestic Meow Ang AT010501
- Hollywoodedge, Cat Domestic Meow Ang AT010503
- Hollywoodedge, Cat Domestic Meow Ang AT010504
- Hollywoodedge, Cat Domestic Meow Ang AT010602
- Hollywoodedge, Cat Domestic Meow Ang AT010603
- Hollywoodedge, Cats Fighting Loud Sc PE917007/Cats Two Angry YowlsD PE022601/Two Cats Screeching And Moaning
- Hollywoodedge, Chickens Clucks Farm AT084301
- Hollywoodedge, Chimpanzee Screams AT050301/Sound Ideas, CHIMPANZEE - EXCITED CALL, ANIMAL, MONKEY, APE 02 (Used for Steve.)
- Hollywoodedge, Chimpanzee Screams AT050401/Sound Ideas, CHIMPANZEE - EXCITED CALL, ANIMAL, MONKEY, APE 03 (Used for Steve.)
- Hollywoodedge, Crash Metal Shatter PE110201
- Hollywoodedge, Crickets 1 BT020401/Night Ambience Light PE011701
- Hollywoodedge, Dog Sniffs Rapid Wlo CRT012302 (Heard once in "Coat of Harms".)
- Hollywoodedge, Drip Single Falls Liq PE041401 (Heard once in "Coat of Harms".)
- Hollywoodedge, Ducks Quacks Duck Qua AT085201 (Heard once in "Ratbirds and Cheesyworms".)
- Hollywoodedge, Egg Timer Bell DingsL PE193601
- Hollywoodedge, Fart 8 Comical Highpi PE139601 (Heard once in "The Science of the Toot".)
- Hollywoodedge, Fart 9 Wet Squish Coul PE139701 (Heard once in "The Ballad of Johnny Sardine" and "My Pops Is Tops".)
- Hollywoodedge, Giggling Two Childre PE131001/Two Young Kids Giggle PE143501 (Heard once in "Sardinee Babies".)
- Hollywoodedge, Girl Screams Long Hi CRT028201 (Heard once in "Self-Helpie".)
- Hollywoodedge, Gusts Heavy Cold Wind PE031601/Whistling Wind Stead PE033301
- Hollywoodedge, Horses 1 High Pitched TE016301/Horses Several Whinn PE025201/Horse Whinnies Group AT045501
- Hollywoodedge, Large Ceramic Pot Bre TE023001/Pottery Drop Break PE112401
- Hollywoodedge, Medium Exterior Crow PE140401
- Hollywoodedge, Medium Exterior Crow PE140501
- Hollywoodedge, Metal Locker Door OC PE183501
- Hollywoodedge, Punch Face Hit 3 Sharp PE100301
- Hollywoodedge, Record Scratches 2 SS016002
- Hollywoodedge, Rooster Crow Typical AT086301 (Heard in "Clock-a-Doodle-Doom".)
- Hollywoodedge, School Bell Long Ring PE193201
- Hollywoodedge, Screams 4 Woman Singl PE133801 (Heard once in "Sardinefest".)
- Hollywoodedge, Screams 5 Woman Short PE133901 (Heard once in "Penguipocalypse".)
- Hollywoodedge, Several Rapid Swish CRT054101
- Hollywoodedge, Single Camera Clicks TE020505 (Heard multiple times in "Self-Helpie".)
- Hollywoodedge, Small Group Kids Chee PE142801/Children Sml Grp Yell PE954901 (Heard once in "Sardinefest".)
- Hollywoodedge, Toy Doll Cries Squea CRT042001
- Hollywoodedge, Warning Buzzer Space PE194501 (Heard twice in "Virtu-Earl Reality".)
- Hollywoodedge, Wood Door OC Bounce PE180501
- Pro Sound Effects, Mosquito, Single CU, High Pitch Whistling, Flying/Sound Ideas, MOSQUITO - BUZZING, ANIMAL, INSECT
- ProjectSAM, Bon Rip 01
- ProjectSAM, Bon Rip 02
- SKYWALKER, CLICK - LIGHT SWITCH CLICKING (Only the War of the Worlds variant is heard once in "Brentonium".)
- SKYWALKER, WIND - PLATES OF WOE WIND SPEAKING (Heard once in "The Pandas Are Coming".)
- Sound Ideas, AIRPLANE, SKID - LANDING TIRE SQUEAL 03
- Sound Ideas, ALARM, CAR - DISARM CAR ALARM, AUTO
- Sound Ideas, ANIMAL, MONKEY - VARIOUS SCREAMS, APE (Used for Steve.)
- Sound Ideas, BABY - COOING, HUMAN (Heard once in "Baby Brent Sitter" and "Party Tron".)
- Sound Ideas, BABY - LAUGHING, HUMAN 01 (Heard once in "Party Tron".)
- Sound Ideas, BABY - LAUGHING, HUMAN 02 (1st laugh; heard once in "Party Tron".)
- Sound Ideas, BITE, CARTOON - BONE BITE
- Sound Ideas, BLINK, CARTOON - XYLO EYE BLINKS
- Sound Ideas, BUZZER, GAME SHOW - GAME SHOW BUZZER: SHORT
- Sound Ideas, CAMERA - 35 MM SLR WITH AUTO WINDER: SINGLE SHOT
- Sound Ideas, CASH REGISTER - ANTIQUE: SINGLE KEY WITH BELL, FAST
- Sound Ideas, CAT - DOMESTIC: SINGLE MEOW, ANIMAL 01
- Sound Ideas, CAT - DOMESTIC: SINGLE MEOW, ANIMAL 02 (Heard once in "It's About Time".)
- Sound Ideas, CAT, DOMESTIC - 8 ANGRY SNARLS & HISSES, ANIMAL
- Sound Ideas, CHILDREN - SCHOOLYARD: PLAYING AND YELLING, AMBIENCE, PLAYGROUND 01 (Heard twice in "Flint Land".)
- Sound Ideas, CHIMPANZEE - EXCITED CALL, ANIMAL, MONKEY, APE 01 (Used for Steve.)
- Sound Ideas, COMPUTER - START UP, RUN, SHUT DOWN, OFFICE (Heard once in "Who You Calling Garbage?".)
- Sound Ideas, COMPUTER, MOUSE - COMPUTER MOUSE, SINGLE CLICK, OFFICE 01
- Sound Ideas, CREAK, WOOD - LARGE WOODEN DOOR CREAK 02 (Heard once in "Inventors Only".)
- Sound Ideas, DOG, POMERANIAN - SMALL DOG, BARKING, ANIMAL
- Sound Ideas, DOOR, BELL - SINGLE RING
- Sound Ideas, FARM ANIMALS - COCK CROWS 01 (Heard often in "Clock-a-Doodle-Doom".)
- Sound Ideas, HORN, BICYCLE - BULB HORN: TWO HONKS, TOY (Heard in "Earl of My Dreams".)
- Sound Ideas, HORN, BOAT - TUG BOAT HORN: ONE LONG AND TWO SHORT BLASTS
- Sound Ideas, HORSE - EXTERIOR: WHINNY, ANIMAL 01
- Sound Ideas, HOSPITAL - HEART MONITOR: HEART FAILURE, CONSTANT TONE (Heard once in "The Ballad of Johnny Sardine" and "So I Married a Watermelon".)
- Sound Ideas, HOSPITAL - HEART MONITOR: MONITORING, CONSTANT BEEPS (Heard often in "The Ballad of Johnny Sardine" and twice in "So I Married a Watermelon".)
- Sound Ideas, HUMAN, BABY - COOING 01 (Heard once in "The Ballad of Johnny Sardine".)
- Sound Ideas, HUMAN, GURGLE - STOMACH, GRUMBLE, GRUMBLING STOMACH, DIGIFFECTS
- Sound Ideas, HUMAN, KISS - LONG KISS
- Sound Ideas, HUMAN, LAUGH - GIGGLING: CHILD (Heard once in "Sardinee Babies".)
- Sound Ideas, HUMAN, SCREAM - SCREAM: FEMALE, HORROR 03
- Sound Ideas, HUMAN, WHISTLE - CALLING WHISTLE 01
- Sound Ideas, ORCHESTRA BELLS - GLISS, UP, MUSIC, PERCUSSION
- Sound Ideas, PING, CARTOON - SMALL STRING PLUCK 01 (Heard once in "Earl or Pearl?".)
- Sound Ideas, PING, CARTOON - SMALL STRING PLUCK 02 (Heard once in "Earl or Pearl?".)
- Sound Ideas, PING, CARTOON - SMALL STRING PLUCK 03 (Heard once in "Earl or Pearl?".)
- Sound Ideas, PLINK, CARTOON - SOUR PLINK
- Sound Ideas, ROBOT, MOTOR - ROBOT SERVO MOTOR 02
- Sound Ideas, SCI FI - JETSONS SPACE CAPSULE: LAND AND STOP 02 (Heard once in "Hair We Go Again".)
- Sound Ideas, STEREO, TURNTABLE - NEEDLE SCRATCHING RECORD, RECORD PLAYER 02
- Sound Ideas, TAPE, CUEING - MUSIC: CUEING ON PROFESSIONAL RECORDER 01
- Sound Ideas, TELEPHONE, CELLULAR - CELLULAR FLIP PHONE: RINGING
- Sound Ideas, TELEVISION - REMOTE CONTROL TELEVISION: SWITCH ON
- Sound Ideas, TOY - SQUEEZE TOY: SINGLE SQUEEZE 01 (Heard in "Sardinee Babies".)
- Sound Ideas, TOY - SQUEEZE TOY, SQUEAKING 01 (Heard in "Sardinee Babies".)
- Sound Ideas, WRITING, PENCIL - WRITING WITH PENCIL, LONG, OFFICE
- Sound Ideas, ZIP, CARTOON - BIG WHISTLE ZING OUT
- Wilhelm Scream