- Freesound, Baby Crying (Used once for Anton when he cries in "Anton's Bathtime" and "Danieleegan's Marriage Ceremony".)
- Freesound, Gasp.wav (Heard once in "Rachel's 22nd Birthday (Part 2)".)
- Freesound, Horror shrieks woman (Used once for Mia as she screams in pain when she gives birth to Anton off-screen in "Mia's Special Delivery")
- GoAnimate - AMBIENCE - RESTAURANT
- GoAnimate - APPLAUSE
- GoAnimate - AUDIENCE YEAH (Heard once in "Cooper's Underwear".)
- GoAnimate - CROWD LAUGH 3 (Heard twice in "Cooper's Underwear".)
- Planet Edge, ELLA CRYING (Used once for Mia when she cries in "Cooper's Knee".)
- SoundBible, Baby Crying (Used once for Anton when he cries in "Danieleegan's Marriage Ceremony".)
- Sound Ideas, HUMAN, BABY - COOING 01 (Used once for Anton when he coos in "Anton's Bedtime".)
- Sound Ideas, HUMAN, BABY - CRYING (2nd half; used once for Melody when she cries in "Cooper and the Baby".)
- Soundrangers, Audiences - Audience Cheers 04
- Soundrangers, Audiences - Medium Audience Laughter 01
- Soundrangers, Human - Baby Boy Cry Many 08
- Soundrangers, Human - Male Scream 01
- Soundrangers, Human - Stomach Gurgle 01
- Soundrangers, Human - Young Girl Scream 01
- SoundTube - Free Sound Effects, BABY CRY 02 (Used once for Anton when he cries in "Anton's Bathtime".)
- YouTube Audio Library, Babies Cry (Used once for Anton when he cries in "Anton's Bedtime" and "Anton's Bathtime".)
- YouTube Audio Library, Baby Cry Long (Used once for Anton when he cries in "Anton's Bathtime".)