2024

as Earl the Dragon (voice) as Don Music (voice) as Charlie Muskrat (voice) as Bobby Benson (voice) as Beaker (voice)

2014

2009		Jim Henson: His Sesame Street Story
2009		Jim Henson's Tales From Muppetland

2005		Fraggle Rock - Dance Your Cares Away as Junior Gorg (voice)
2005		Fraggle Rock - Live By the Rule of the Rock as Doozer/ Gunge / Junior Gorg/ Background Fraggles (voice)

2004		Muppet History 101
2004		Muppet Music Moments as Self

2003

as Backup Monster (puppeteer)

2002

as Harry (voice) (archive footage)

2001

as Statler / Scooter / Janice

1999		The Very Best of the Muppet Show: Volume 2 as Statler / Scooter / Janice / Beaker / Sweetums / Gladys
1999		The Very Best of the Muppet Show as Statler / Scooter / Janice / Beaker / Sweetums / Gladys

1997

as Kermit the Forg / Frazzletone

1994

as Self (archive footage)

1993

1991		Muppet*Vision 3-D as Beaker
1991		Sesame Street: Sing, Hoot & Howl with the Sesame Street Animals as Gladys the Cow

1990		The Muppets at Walt Disney World as Scooter / Statler / Janice / Beaker (voice)
1990		The Earth Day Special as Crocodile (voice)
1990		Sesame Street: Monster Hits! as Stuie Monster (voice) / Lavender Frazzletone (voice) / Two-Headed Monster (right half) (voice) / Furline Huskie (voice) / Kermit the Frog (voice)
1990		Sesame Street: Sing Yourself Silly!

1989

(12 episodes)

1988		Sesame Street: Put Down the Duckie: An All-Star Musical Special as Muppet Performer
1988		Muppet Studios Presents: You're the Director as Janice / Scooter / Statler (voice)
1988		Jim Henson: Sing-Along, Dance-Along, Do-Along as Additional Muppet Performer (voice)

1987		A Muppet Family Christmas as Scooter / Janice / Statler / Beaker / Gladys the Cow / Two-Headed Monster / Snowman (voice)
1987		Fraggle Rock: The Animated Series (0 episodes)
1987		CBS Summer Playhouse (1 episode) as Del
1987		Sesame Street: Sing Along as Two-Headed Monster (right) (voice)

1986		The Christmas Toy as Belmont
1986		Fraggles Look For Jobs as Himself
1986		The Tale of the Bunny Picnic as Lugsy (voice)
1986		The Muppets: A Celebration of 30 Years as Beaker / Scooter / Statler / Sweetums / Janice / Two-Headed Monster (Stein) / Tug Monster

1985		Muppet Video: Rowlf's Rhapsodies with the Muppets as Scooter (voice)
1985		Jim Henson's Little Muppet Monsters (13 episodes)
1985		Follow That Bird as Gladys the Cow / Feathered Friends Owl / Additional Muppets / Grouches (voice)
1985		Muppet Treasures as Janice (voice)
1985		Gonzo Presents Muppet Weird Stuff as Camilla the Chicken (voice)
1985		Muppet Video: The Kermit and Piggy Story
1985		Children's Songs and Stories with the Muppets as Scooter (voice)

1984		Oxford Blues as Larry
1984		The Muppets Take Manhattan as Scooter / Statler / Janice / Beaker / Dog (voice)

1983		Don't Eat the Pictures: Sesame Street at the Metropolitan Museum of Art as Muppet Performer (voice)
1983		Trading Places as Wilson
1983		Big Bird in China as Two-Headed Monster (voice)
1983		Rocky Mountain Holiday with John Denver and the Muppets as Scooter / Janice / Statler / Bubba (voice)
1983		Fraggle Rock (72 episodes) as Junior Gorg (himself) / Gunge / Mudwell the Mudbunny / Herkimer Fraggle / The Spiderfly / Gillis Fraggle / Turbo / The Genie / Purple Fragglette / Fire Chief Fraggle / Flex Doozer / Background Fraggles (voice)

1982

as Scooter / Janice / Beaker (voice)

1981		Of Muppets & Men as Self
1981		The Great Muppet Caper as Scooter / Statler / Sweetums / Janice / Beaker / Bubba
1981		The Muppets Go to the Movies as Beaker / Janice / Scooter / Sheriff / Statler (voice)

1979		John Denver and the Muppets: A Christmas Together as Scooter / Statler / Janice / Beaker (voice)
1979		The Muppet Movie as Scooter / Statler / Janice / Sweetums / Beaker / Fozzie Bear (assistant) (voice)
1979		The Muppets Go Hollywood as Various Muppets

1978

as Ernie (assistant) / Additional Muppets (voice)

1977		The Bob Hope All Star Christmas Comedy Special as Scooter
1977		Emmet Otter's Jug-Band Christmas as Charlie / Lizard / George Rabbit (voice)

1976

(120 episodes) as Statler, Scooter / Janice / Beaker / Wayne / Sweetums (voice)

1974

as Various Muppets (voice)

1973

1972

as Chicken / Additional Muppet Performer

1970

as Bing / Match Frackle (voice)

1969		Sesame Unpaved (67 episodes)
1969		Sesame Street (2748 episodes)
1969		Peter Alexander präsentiert Spezialitäten (2 episodes) as Self