(1989) The Little Mermaid

as King Triton (voice)

(1969) Butch Cassidy and the Sundance Kid

as Marshal

(1974) Young Frankenstein

as Inspector Kemp

(2000) How to Marry a Billionaire: A Christmas Tale

as ---

(1968) The Producers

as Franz Liebkind

(1979) The Apple Dumpling Gang Rides Again

as Woolly Bill Hitchcock

(2000) The Land Before Time VII: The Stone of Cold Fire

as Grandpa (voice)

(1983) Yellowbeard

as Mr. Crisp

(1972) What's Up, Doc?

as Hugh Simon

(2003) The Land Before Time X: The Great Longneck Migration

as Grandpa (voice)

(2005) The Land Before Time XI: Invasion of the Tinysauruses

as Grandpa (voice)

(1975) Night Moves

as Nick

(2002) The Land Before Time IX: Journey to Big Water

as Grandpa (voice)

(2001) The Land Before Time VIII: The Big Freeze

as Grandpa / Lambeosaurus (voice)

(1988) For Keeps

as Mr. Bobrucz

(1985) Fletch

as Stanton Boyd

(1989) Get Smart, Again!

as Cmdr. Drury

(1996) Citizen Ruth

as Dr. Charlie Rollins

(1994) The Land Before Time II: The Great Valley Adventure

as Grandpa (voice)

(1995) Rough Magic

as Magician

(1969) Viva Max!

as Dr. Sam Gillison

(1998) The Land Before Time VI: The Secret of Saurus Rock

as Grandpa (voice)

(1974) The Parallax View

as Former FBI Agent Will

(1988) Illegally Yours

as Hal B. Keeler

(1995) The Land Before Time III: The Time of the Great Giving

as Grandpa (voice)

(1973) Steambath

as Broker

(1969) The April Fools

as Les Hopkins

(1985) Beer

as A.J. Norbecker

(1981) Full Moon High

as The Coach - Principal Cleveland

(1972) Screwball Comedies... Remember Them?

as Self

(2001) Teddy Bears' Picnic

as Gene Molinari

(1975) Someone I Touched

as Paul Wrightwood

(2016) The Last Laugh

as Self

(1973) Guess Who's Sleeping in My Bed?

as Mitchell Bernard

(1997) Bruno the Kid: The Animated Movie

as Professor Von Trapp (voice) (archive footage)

(1972) Second Chance

as Dr. Julius Roth

(1996) The Land Before Time IV: Journey Through the Mists

as Grandpa (voice)

(1997) The Land Before Time V: The Mysterious Island

as Grandpa (voice)

(1988) Top Cat and the Beverly Hills Cats

as Director / Dogcatcher (voice)

(1991) Shadows and Fog

as Magician

(1990) She'll Take Romance

as Smokey

(1971) Desperate Characters

as Otto Bentwood

(1979) You Can't Take it With You

as Mr. Kolenkhov

(1989) Son of Dinosaurs

as ---

(2000) The Little Mermaid II: Return to the Sea

as King Triton (voice)

(1985) Prince Jack

as Lyndon Johnson

(2000) Runaway Virus

as Dr. Arnold Bowman

(1991) Mimi & Me

as Uncle Al

(1994) Thumbelina

as King Colbert (voice)

(1986) The Adventures of the American Rabbit

as Vultor / Walt (voice)

(1984) Protocol

as Lou

(1979) Before and After

as Ben Fryer

(1975) It's a Bird, It's a Plane, It's Superman!

as Max Mencken

(1983) Group Madness

as Self

(1993) We're Back! A Dinosaur's Story

as Professor Screweyes (voice)

(1963) Act One

as Robert E. Sherwood

(2006) The Land Before Time: 2 DinoRiffic Adventures

as Grandpa Longneck

(1989) Police Academy 6: City Under Siege

as Mayor

(1974) Hello Mother, Goodbye!

as ---

(2005) Disney Heroes Volume 1

as Old Gorilla (voice)

(1987) Rented Lips

as Reverend Farrell

(1993) Sex, Shock & Censorship in the 90's

as Reverend Pete

(2019) The Little Mermaid Live!

as King Triton (voice)

(2002) The Making of 'The Producers'

as Self

(1987) Radio Days

as Rabbi Baumel

(1996) Making Frankensense of Young Frankenstein

as Inspector Kemp (archive footage)

(2006) The Land Before Time XII: The Great Day of the Flyers

as Grandpa / Parasaurlophus (voice)

(1978) Goin' Coconuts

as Kruse

(1982) The Rules of Marriage

as Red Hewitt

(1992) Fievel's American Tails

as Sweet William (voice)

(1995) The Drew Carey Show

as Mr. Tinsley

(1986) L.A. Law

as Judge John Zimring

(1980) Magnum, P.I.

as Joseph

(1976) Alice

as ---

(1994) Duckman

as ---

(1983) Hardcastle and McCormick

as ---

(1971) Columbo

as Mike

(1984) Charles in Charge

as Poppa Grundov

(1982) Remington Steele

as Douglas Veenhof

(1979) Trapper John, M.D.

as ---

(1996) The Real Adventures of Jonny Quest

as ---

(1979) The Facts of Life

as ---

(1990) Tiny Toon Adventures

as ---

(1998) L.A. Doctors

as ---

(1996) The Pretender

as Benny

(1993) Mighty Max

as ---

(1981) Simon & Simon

as ---

(1985) The Twilight Zone

as (segment "Tooth and Consequences")

(1966) That Girl

as ---

(1985) 227

as ---

(2000) Malcolm in the Middle

as Otto Mannkusser

(1973) Hawkins

as Lester De Ville

(1975) Barney Miller

as Officer Callahan

(1991) Darkwing Duck

as ---

(1969) Room 222

as ---

(1967) Mannix

as ---

(1993) Diagnosis: Murder

as Wallace Carstairs

(1991) Rugrats

as ---

(1992) The Little Mermaid

as King Triton (voice)

(1976) Laverne & Shirley

as ---

(1997) The Angry Beavers

as ---

(1997) Cow and Chicken

as ---

(1994) Weird Science

as ---

(1979) Hart to Hart

as ---

(1986) The Flintstone Kids

as Narrator

(1955) Gunsmoke

as Clyde Hayes

(1982) Cagney & Lacey

as ---

(2003) Oliver Beene

as ---

(1998) Becker

as Melvin

(1993) Lois & Clark: The New Adventures of Superman

as ---

(2006) Hannah Montana

as Gunther

(1983) The Biskitts

as Fetch

(1982) Tucker's Witch

as ---

(1998) Will & Grace

as Uncle Sid

(1965) Get Smart

as ---

(1967) Ironside

as ---

(1971) McMillan & Wife

as ---

(1974) Harry O

as ---

(1974) Police Woman

as ---

(1983) Saturday Supercade

as Quickclaw (voice)

(1978) Project U.F.O.

as ---

(1985) Misfits of Science

as Sen. Donner

(1984) The Duck Factory

as ---

(1969) The Debbie Reynolds Show

as ---

(1976) Good Heavens

as ---

(1979) Carol Burnett & Company

as ---

(1979) Sweepstakes

as ---

(1990) Shades of L.A.

as Uncle Louis Burton

(1975) The Bob Crane Show

as ---

(1992) Batman: The Animated Series

as Richard (voice)

(1992) Batman: The Animated Series

as M2 (voice)

(1981) Laverne & Shirley in the Army

as Sgt. Turnbuckle

(2001) The Legend of Tarzan

as Old Gorilla (voice)

(1967) He & She

as Harry Zarakardos

(1995) Freakazoid!

as Dr. Hunterhanker (voice)

(1979) Scooby-Doo and Scrappy-Doo

as Director

(1950) The Bob Hope Show

as Self

(1991) Darkwing Duck

as (voice)

(1990) Bobby's World

as ---

(1973) Barnaby Jones

as William Tarkington IV

(1987) A Different World

as Ridley

(1974) Hello Mother, Goodbye!

as Son

(1973) Here We Go Again

as Jim Sutton

(1967) Mannix

as Mercer

(1990) TaleSpin

as Heimlich Menudo (voice)

(1990) TaleSpin

as Buzz (voice)

(1990) TaleSpin

as Buzz / Heimlich Menudo (voice)

(1993) Animaniacs

as Beethoven (voice)

(1986) Perfect Strangers

as Ace Atkins

(1993) Star Trek: Deep Space Nine

as Colyus

(1982) Tucker's Witch

as Mark Wyndham

(1995) The Naked Truth

as Judge

(1966) ABC Stage 67

as Dr. Pratt

(1996) Nash Bridges

as Ronald Bishop

(1967) The Carol Burnett Show

as Self - Guest / Various Characters

(1987) DuckTales

as Auric (voice)

(1971) McMillan & Wife

as Dr. Thursby

(1991) The Pirates of Dark Water

as Additional Voices

(1974) Police Woman

as Manny Ziegler

(1968) The Ghost & Mrs. Muir

as Joshua T. Albertson

(1990) Tom & Jerry Kids Show

as Narrator (voice)

(1980) The Flintstone Comedy Show

as Lou Granite

(1988) The Adventures of Raggedy Ann and Andy

as The Camel with the Wrinkled Knees

(1996) Boston Common

as Clown

(1997) Just Shoot Me!

as Horst

(2002) Good Morning, Miami

as Marty

(1984) Murder, She Wrote

as Hemsley Post

(1975) Wonder Woman

as Colonel Von Blasko

(1969) Love, American Style

as Jake

(1969) Love, American Style

as Joe

(1992) Hangin' with Mr. Cooper

as Mr. Hucklebuck