House
Henry Errington
Clue
The Chief (uncredited)
Police Academy 2: Their First Assignment
Pete Lassard
Lie to Me
Sam Hendricks
This Is Spinal Tap
Terry Ladd
That '70s Show
Max
Halloween II
Uncle Meat
CSI: Crime Scene Investigation
Dr. Aden
About Schmidt
Larry Hertzel
Chicago Med
Clyde Glickman
All About Steve
Mr. Horowitz
Psych
Barry Saunder
Flight of the Navigator
Dr. Louis Faraday
ER
Dr. James Broderick
The Jerk
Carnival Worker (uncredited)
The Rocker
Gator
Saturday Night Live
Self - Host
Murder, She Wrote
Sheldon Greenberg
Boston Legal
Judge Robert Thompson
Silent Movie
Executive
Martian Child
Dr. Berg
Fresh Off the Boat
Mr. Royce
Drop Dead Diva
Cole Lamburt
Mike & Molly
Otis
Gridlock'd
Blind Man
Shampoo
Red Dog
The Outer Limits
Dr. Emory Taylor
The Pretender
Landlord
Amazon Women on the Moon
Rupert King (segment "Titan Man")
Touched by an Angel
Flynn Hodge
The Andy Griffith Show
Counter Boy
Crossing Jordan
Barney Reynolds
Two Guys and a Girl
Mr. Bergen
Man About Town
Ben Giamoro
The Rockford Files
Al Steever
Private Lessons
Lester
Quincy, M.E.
D.A. Jerry Douglas
The Big Bus
Jack
The Sunshine Boys
Mr. Walsh, Commerical Director
The Practice
Judge C. Williams
Sanford and Son
WKRP in Cincinnati
Dr. Johnny Fever
Wild Oats
Vespucci
Salvation Boulevard
Billy
Doctor Detroit
Smooth Walker
Billy Jack
Drama Teacher
Laverne & Shirley
Soap
Mr. Franklin
The Bob Newhart Show
Craig Plager
One Day at a Time
Sam Royer
Heat
Pinchus Zion
Mannix
Ray Bennett
Bigfoot
Mayor Tommy Gillis
Petulia
Hippie (uncredited)
A Christmas in Vermont
Nick Harper
Baretta
Walker
Cisco Pike
Recording Engineer
Head of the Class
Charlie Moore
Jackson County Jail
David
The Ray Bradbury Theater
My Chauffeur
McBride
Rubin & Ed
Ed Tuttle
On the 2nd Day of Christmas
David
Tarantulas: The Deadly Cargo
Fred
The Other Side of Midnight
O'Brien
Rhoda
John from Cincinnati
Erlemeyer
Honky Tonk Freeway
Snapper
Little Miss Millions
Nick Frost
Faerie Tale Theatre
King
Steelyard Blues
Frank Veldini
Crazy for Christmas
Fred Nickells
Loose Shoes
Ernie Piles, War Correspondent
Boomtown
Mel Castle
Tunnel Vision
Senator McMannus
Kid Blue
Confectionary Man (as Howard Hessman)
Mary Hartman, Mary Hartman
Dr. Robert Williams
The Ghost of Flight 401
Bert Stockwell
Murder in New Hampshire: The Pamela Wojas Smart Story
Paul Maggioto
Americathon
Kip Margolis
The Blue Knight
Jory
Santa Rosa bartender
Motown 25: Yesterday, Today, Forever
Self
Family Law
Howard Thomas / Randall
The Smothers Brothers Comedy Hour
Various
Harry O
Senator Lawler
Hustling
Detective
Life After The Navigator
Himself
The Amazing Howard Hughes
Jenks
Switch
M.W.
Munchie Strikes Back
Munchie (voice)
Some Kind of a Nut
Bartender
Who Done It: The Clue Documentary
Self (archive footage) (uncredited)
Out-of-Sync
Det. Caldwell
Whiffs
Dr. Gopian
The Christian Licorice Store
Last Party Guest
Six Against the Rock
Joseph 'Dutch' Cretzer
Skyward
Koup Trenton
Celebrities Uncensored
Self
Battle of the Network Stars
Thieves
Call Me Anna
John Ross
Silence of the Heart
Carl Lewis
The New WKRP in Cincinnati
Hot Chocolate
Mr. Cassidy
Inside Out
Jack
Thank You, Del: The Story of the Del Close Marathon
Self
Valerie
Self
Tail Gunner Joe
Lt. Ted Cantwell
Quiet Killer
Congressman Calvin Phillips
Teddy Bears' Picnic
Ted Frye
Silver Skies
Billy
One Shoe Makes it Murder
Joe Hervey
Victims
Charles Galloway
Burke's Law
Chuck Mason
The Diamond Trap
Det. Rollings
The Comedy Company
Roger Dustleman
Mister Roberts
Doc
Outside Chance
David
Gridlock
Señor Smooth (voice)
The Mesmerist
Mr. Valdemar
The Sky is Falling
Yogi Cook
Best Kept Secrets
Jim Osborne
For Madmen Only: The Stories of Del Close
Self
The Blue Knight
Resident
High Stakes
Wayne Dreyer
Innocent Victims
Smithline
Level 9
Three Sisters
Jerry Keats
The Blue Knight
The Amazing Howard Hughes
Jenks
John Ritter: Being of Sound Mind and Body
Self / The Rock Doctor
Lethal Exposure
Taylor Cochran
You Can't Take it With You
Wilbur C. Henderson
Prisoners
The Princess Who Had Never Laughed
King
A Session with the Committee
(as Don Sturdy)
More Than Friends
Avery Salminella
Likely Stories, Vol. 4
Sy Fishko
George Burns Comedy Week
Andy Pace
Delvecchio
Goldie
Rockin' at the Red Dog: The Dawn of Psychedelic Rock
narrator
The Fantastic Funnies
Dr. Johnny Fever
Focus on Fishko
Sy
