The Little Mermaid

Triton (voice)

Butch Cassidy and the Sundance Kid

Marshal

Young Frankenstein

Inspector Kemp

How to Marry a Billionaire: A Christmas Tale

Buzz

The Producers

Franz Liebkind

The Apple Dumpling Gang Rides Again

Woolly Bill Hitchcock

The Land Before Time VII: The Stone of Cold Fire

Grandpa (voice)

Yellowbeard

Mr. Crisp

What's Up, Doc?

Hugh Simon

The Land Before Time X: The Great Longneck Migration

Grandpa (voice)

The Land Before Time XI: Invasion of the Tinysauruses

Grandpa (voice)

Night Moves

Nick

The Land Before Time IX: Journey to Big Water

Grandpa (voice)

The Land Before Time VIII: The Big Freeze

Grandpa / Lambeosaurus (voice)

For Keeps

Mr. Bobrucz

Fletch

Stanton Boyd

Get Smart, Again!

Cmdr. Drury

Citizen Ruth

Dr. Charlie Rollins

The Land Before Time II: The Great Valley Adventure

Grandpa (voice)

Rough Magic

Magician

Viva Max!

Dr. Sam Gillison

The Land Before Time VI: The Secret of Saurus Rock

Grandpa (voice)

The Parallax View

Former FBI Agent Will

Illegally Yours

Hal B. Keeler

The Land Before Time III: The Time of the Great Giving

Grandpa (voice)

Steambath

Broker

The April Fools

Les Hopkins

Beer

A.J. Norbecker

Full Moon High

The Coach - Principal Cleveland

Screwball Comedies... Remember Them?

Self

Teddy Bears' Picnic

Gene Molinari

Someone I Touched

Paul Wrightwood

The Last Laugh

Self (archive footage) (uncredited)

Guess Who's Sleeping in My Bed?

Mitchell Bernard

Bruno the Kid: The Animated Movie

Professor Von Trapp (voice) (archive footage)

Second Chance

Dr. Julius Roth

The Land Before Time V: The Mysterious Island

Grandpa (voice)

The Land Before Time IV: Journey Through the Mists

Grandpa (voice)

Top Cat and the Beverly Hills Cats

Director / Dogcatcher (voice)

Shadows and Fog

Magician

She'll Take Romance

Smokey

Desperate Characters

Otto Bentwood

You Can't Take it With You

Mr. Kolenkhov

Son of Dinosaurs

Self

The Little Mermaid II: Return to the Sea

King Triton (voice)

Prince Jack

Lyndon Johnson

Runaway Virus

Dr. Arnold Bowman

Mimi & Me

Uncle Al

Thumbelina

King Colbert (voice)

The Adventures of the American Rabbit

Vultor / Walt (voice)

Protocol

Lou

Before and After

Ben Fryer

It's a Bird, It's a Plane, It's Superman!

Max Mencken

Group Madness

Self

We're Back! A Dinosaur's Story

Professor Screweyes (voice)

Act One

Robert E. Sherwood

The Land Before Time: 2 DinoRiffic Adventures

Grandpa Longneck

Police Academy 6: City Under Siege

Mayor

Hello Mother, Goodbye!

Son

Disney Heroes Volume 1

Old Gorilla (voice)

Rented Lips

Reverend Farrell

Sex, Shock & Censorship in the 90's

Reverend Pete

The Little Mermaid Live!

King Triton (archive footage) (voice)

The Making of 'The Producers'

Self

Radio Days

Rabbi Baumel

Making Frankensense of Young Frankenstein

Inspector Kemp (archive footage)

The Land Before Time XII: The Great Day of the Flyers

Grandpa / Parasaurlophus (voice)

Goin' Coconuts

Kruse

The Rules of Marriage

Red Hewitt

Heaven Only Knows

Bert Hammond

Misfits of Science

Sen. Donner