- as Ted Templeton Jr. / Boss Baby (Voice)
- as Tim Templeton (Voice)
- as Tina Templeton (Voice)
- as Tabitha Templeton (Voice)
- as Dr. Erwin Armstrong (Voice)
- as Carol Templeton (Voice)
- as Wizzie (Voice)
- as Ted Templeton Sr. (Voice)
- as Janice Templeton (Voice)
- as Nathan / Lead Baby Ninja (Voice)
- as Jimbo (Voice)
- as Movie Patron (Voice)
- as Dr. Tiffany Hamilton (Voice)
- as Box Kid (Voice)
- as Baby Bouncer (Voice)
- as Young Tim Voice-Over (Voice)
Watch "The Boss Baby: Family Business":