- Tom and Jerry: The Magic Ring (2002) - Chip
- Scooby-Doo and Guess Who?
- 116. "One Minute Mysteries!" (2020) - Flash (Barry Allen)
In 1988, Schlatter starred as the co-lead in the film 18 Again! At the beginning of the '90s, Schlatter starred as the titular Ferris Bueller, in a short-lived TV version of Ferris Bueller's Day Off. In 1995, he joined the cast of CBS' Diagnosis: Murder's third season, and remained until it was cancelled in its eighth season in 2001. He was also the voice of the Flash/Barry Allen on the TV series The Batman and Justice League Action, both of which are unrelated to each other.