 | Nova Express (2009) als Narrator (voice) |
 | Money, Power, Murder. (1989) als Brant |
| | Eat or Be Eaten (1986) als Professor Buster DeCooth / Fred Stiffner / Barbarian Customs Agent |
 | Firesign Theatre Presents 'Hot Shorts' (1985) als Various Roles (voice) |
 | Nick Danger in the Case of the Missing Yolk (1983) als Lt. Bradshaw / Yoey Yolk / Judge Knot |
 | J-Men Forever (1979) als The Chief |
 | Cracking Up (1977) als Barbara Halters |
| | Everything You Know Is Wrong (1975) als Ben Franklin / Prof. Bowman / McGog brother / Pat Hat / Buzz Crumbhunger / Maj. Chuck / Training film narrator |
| | TV or Not TV (1973) |
 | Un Homme Qui Me Plaît (1969) als Le metteur en scène |
 | The Other Side Director |
| | Firesign Theatre Presents 'Hot Shorts' Writer |
 | Americathon Theatre Play |
| | Americathon Adaptation |
| | J-Men Forever Writer |
| | Cracking Up Writer |
| | Everything You Know Is Wrong Director |
| | Everything You Know Is Wrong Producer |
| | Everything You Know Is Wrong Writer |
 | Zachariah Writer |