- Transformers: 40th Anniversary Event
2024 Cliffjumper / Bluestreak / Teletraan 1 (archive audio)
- Scooby-Doo, Where Are You Now!
2021 Shaggy Rogers (voice) (archive footage)
- A Scooby-Doo Valentine Bouquet
2021 Shaggy Rogers (voice) (archive footage)
- Scooby-Doo! Frankencreepy
2014 Shaggy Rogers (voice) (archive footage)
- Scooby-Doo! 13 Spooky Tales: Ruh-Roh Robot!
2013 Shaggy Rogers
- Scooby-Doo: Mystery in Motion
2012 Shaggy Rogers / Sheriff (voice) (archive footage)
- Scooby-Doo! and the Skeletons
2012 Shaggy Rogers (voice)
- Battle of the Planets: The Movie
2012 Mark
- Scooby-Doo! and the Werewolves
2012 Shaggy Rogers (voice) (archive footage)
- Scooby-Doo! and the Safari Creatures
2012 Shaggy Rogers (voice)
- Scooby-Doo! and the Sea Monsters
2012 Shaggy Rogers (voice) (archive footage)
- Scooby Doo and The Zombies
2011 Shaggy Rogers (voice) (archive footage)
- Scooby-Doo! and the Robots
2011 Shaggy Rogers (voice) (archive footage)
- Scooby-Doo! and the Pirates
2011 Shaggy Rogers (voice) (archive footage)
- Scooby-Doo! and the Samurai Sword
2009 Shaggy (voice)
- Peter Kay's Animated All Star Band: The Official BBC Children in Need Medley
2009 Shaggy Rogers (voice) (uncredited)
- Scooby-Doo! and the Goblin King
2008 Shaggy Rogers (voice)
- Scooby-Doo: Agence toutou risques, vol. 1 : Le voleur de vélo
2007 Shaggy Rogers (voice)
- Scooby-Doo: Agence toutou risques, vol. 2 : Le fantôme de la télé
2007 Shaggy Rogers (voice)
- Chill Out, Scooby-Doo!
2007 Shaggy Rogers (voice)
- Scooby-Doo! Pirates Ahoy!
2006 Shaggy Rogers (voice)
- What's New Scooby-Doo? Vol. 10: Monstrous Tails
2006 Shaggy Rogers (voice) (archive footage)
- What's New, Scooby-Doo? Vol. 7: Ghosts on the Go!
2006 Shaggy Rogers (voice)
- What's New, Scooby-Doo? Vol. 7: Ready to Scare
2006 Shaggy Rogers (voice)
- Scooby-Doo! in Where's My Mummy?
2005 Shaggy Rogers (voice)
- Aloha Scooby-Doo!
2005 Shaggy Rogers (voice)
- What's New, Scooby-Doo? Vol. 5: Sports Spooktacular
2005 Shaggy Rogers (voice)
- An Evening with the Scooby-Doo Gang
2005 Shaggy Rogers
- Scooby-Doo! and the Loch Ness Monster
2004 Shaggy Rogers (voice)
- What's New Scooby-Doo? Vol. 4: Merry Scary Holiday
2004 Shaggy Rogers (voice)
- What's New Scooby-Doo? Vol. 3: Halloween Boos and Clues
2004 Shaggy Rogers (voice)
- Cartoon Network Christmas: Yuletide Follies
2004 (voices)
- Scooby-Doo! and the Legend of the Vampire
2003 Shaggy (voice)
- Scooby-Doo! and the Monster of Mexico
2003 Shaggy Rogers (voice)
- Scooby-Doo's Spookiest Tales
2003 Executive Producer
- Looney Tunes: Back in Action
2003 Shaggy (voice)
- What's New, Scooby-Doo? Vol. 1: Space Ape at the Cape
2003 Shaggy Rogers (voice)
- Scooby-Doo! Winter WonderDog
2002 Shaggy (voice) (archive footage)
- Scooby-Doo Meets Batman
2002 Norville 'Shaggy' Rogers / Robin (voice) (archive footage)
- The 1st 13th Annual Fancy Anvil Awards Show Program Special: Live in Stereo
2002 Shaggy (archive footage) (uncredited)
- A Scooby-Doo! Christmas
2002 Shaggy (voice)
- Scooby-Doo's Spookiest Tales
2001 Shaggy Rogers (voice) (archive footage)
- Scooby-Doo's Creepiest Capers
2000 Shaggy Rogers / Officer (voice)
- Scooby-Doo's Original Mysteries
2000 Shaggy Rogers (voice) (archive footage)
- Rugrats in Paris: The Movie
2000 Wedding DJ (voice)
- Scooby-Doo's Greatest Mysteries
1999 Shaggy Rogers / Additional Voices / Officer (voice)
- Undercover Angel
1999 Casey Kasem
- Merry Christmas, George Bailey
1997 Radio Announcer
- James Dean: Race with Destiny
1997 Bill Romano
- Sonic Outlaws
1995
- Scooby-Doo! in Arabian Nights
1994 Shaggy Rogers (voice)
- Cosmic Slop
1994 (segment 'Space Traders')
- Hanna-Barbera's 50th
1989 Shaggy Rogers (voice)
- Mickey's Safety Club: Street Safe, Street Smart
1989 Additional Voices (voice)
- Scooby-Doo! and the Reluctant Werewolf
1988 Shaggy Rogers (voice)
- Scooby-Doo and the Ghoul School
1988 Shaggy Rogers / Mirror Monster (voice)
- Scooby-Doo! Meets the Boo Brothers
1987 Shaggy (voice)
- Hanna-Barbera Presents: A Treasury Of Cartoon Classics
1987 Shaggy Rogers (voice) (archive footage)
- Transformers - Le cosmitron
1986 Teletraan I
- Rock 'N' Roll Goldmine: The Sixties
1986 himself
- The Transformers: More Than Meets the Eye
1986 Cliffjumper / Bluestreak / Teletraan 1 (voice)
- The Transformers: The Movie
1986 Cliffjumper (voice)
- Ghostbusters
1984 Casey Kasem (voice)
- Scooby-Doo's A Nutcracker Scoob
1984 Shaggy Rogers (voice)
- E.T. the Extra-Terrestrial
1982 Himself (Uncredited) (Voice on Archival Footage)
- The Return of the King
1980 Meriadoc 'Merry' Brandybuck (voice)
- Scooby Goes Hollywood
1979 Shaggy Rogers (voice)
- The Dark
1979 Police Pathologist
- The Flintstones Meet Rockula and Frankenstone
1979 Monty Marble (voice)
- Disco Fever
1978 Brian Parker
- New York, New York
1977 D.J. aka Midnight Bird
- The Night That Panicked America
1975 Mercury Theatre Player
- The Last of the Mohicans
1975 Uncas (voice)
- Mr. & Ms. and the Bandstand Mystery
1975 Casey Kasem
- The City That Forgot About Christmas
1974 (voice)
- Soul Hustler
1973 Birnie
- The Bear Who Slept Through Christmas
1973 Narrator (voice)
- Scooby-Doo! Meets the Harlem Globetrotters
1973 Shaggy Rogers (voice)
- Doomsday Machine
1972 Mission Control Officer
- Scooby-Doo Meets The Addams Family
1972 Shaggy Rogers / Ling-Poo (Voice)
- Scooby-Doo! Meets the Harlem Globetrotters
1972 Norville 'Shaggy' Rogers
- Here Comes Peter Cottontail
1971 Peter Cottontail (voice)
- The Girls from Thunder Strip
1970 Conrad
- 2000 Years Later
1969 Disc Jockey
- Scream Free!
1969 Phil
- Wild Wheels
1969 Knife
- The Cycle Savages
1969 Executive Producer
- The Glory Stompers
1967 Associate Producer
