Sydney Lassick

Sydney Lassick (July 23, 1922 – April 12, 2003) was an American character actor perhaps best known for his role as Charlie Cheswick in the feature film One Flew Over the Cuckoo's Nest.
Cast

One Flew Over the Cuckoo's Nest
Charlie Cheswick

Joe Dancer III: The Big Trade
Phil Estin

Carrie
Mr. Fromm

China 9, Liberty 37
Sheriff's Friend

Freeway
Woody Wilson

The Unseen
Ernest Keller

Judgement
Dr. Henry Silver

The Bonnie Parker Story
Scout Master

Fast-Walking
Ted

An American Vampire Story
Bruno

Hot Stuff
Hymie

Sinderella and the Golden Bra
Fairy Godfather

Body Slam
Shapiro

Sonny Boy
Charlie P.

Skatetown, U.S.A.
Murray

Stitches
Sheldon Mendlebaum

Paratroop Command
Interpreter

Committed
Gow

Tale of Two Sisters
Dad

Tom and Jerry: The Movie
Straycatcher #2 (voice)

Eye of the Stranger
Oli

Curse II: The Bite
George

Serpico: The Deadly Game
Goldman

The Cracker Factory
Ernie

The Happy Hooker Goes to Washington
Percy Bowdler

The Billion Dollar Hobo
Mitchell

Cool as Ice
Roscoe

Monaco Forever
American Tourist

Man on the Moon
Crystal Healer

Squanderers
Peter Chisholm
Damien: The Leper Priest
Supt. Rudolph Meyer

Don't Tell Mom the Babysitter's Dead
Franklin

Amazing Stories: The Movie III
(archive footage)

Future Shock
Mr. Johnson

Pandemonium
Man in Bus Station

Something to Sing About
Elderly Man

Miracle Beach
Tooth Fairy

Out on Bail
Otis T. Smiley

The Art of Dying
Wallie

Smoothtalker
Mr. Nathan

Attack of the 5 Ft. 2 Women
Weirdo

Pacific Palisades
Mr. Beer

Deep Cover
Gopher

Ratboy
Lee 'Dial-A-Prayer'

Lady in White
Mr. Lowry

Silent Madness
Sheriff Liggett

History of the World: Part I
Applecore Vendor - The French Revolution (as Sidney Lassick)

Sister Act 2: Back in the Habit
Competition Announcer

Vice
Mr. Wanorski

Shakes the Clown
Peppy the Clown

Alligator
Gutchel

The Further Adventures of Tennessee Buck
Wolfgang Meyer

Partners
Photo Shoot Assistant (uncredited)

Night Patrol
Peeping Tom