Frank Oz

Muppet Perk-Up

1985

Muppet Perk-Up Grump (voice)

Muppet Breakthrough

1983

Muppet Breakthrough Grump

1982

I Love Liberty Miss Piggy / Fozzie Bear (voice)

1981

Muppet Side Splitter Grump (voice)

Muppet Breaker Upper

1979

Muppet Breaker Upper Grump / Quongo

Muppet Gimme a Break

1979

Muppet Gimme a Break Grump

Let's Have the Dam Break

1979

Let's Have the Dam Break Grump

Grump Critic

1979

Grump Critic Grump

Meal Break

1979

Meal Break Grump

1978

Hip Hip Parade! Fozzie Bear

The Vent Event

1978

The Vent Event Fozzie Bear

The Royal Variety Performance 1977

1977

The Royal Variety Performance 1977

Kagayake! Gorō Mapetto Geba Geba 90-pun!

1976

Kagayake! Gorō Mapetto Geba Geba 90-pun! George the Janitor, Fozzie Bear

Just a Few Announcements

1975

Just a Few Announcements Sam the Eagle

1975

The Muppet Introduction Sam the Eagle

1969

This Way to Sesame Street Bert