Sydney Lassick
- Compleanno:
- 07/22/1922
- Luogo di nascita:
- Chicago, Illinois, USA:
 | Vice (2005) Mr. Wanorski |
 | Something to Sing About (2000) Elderly Man |
 | Man on the Moon (1999) Crystal Healer |
 | An American Vampire Story (1997) Bruno |
 | Freeway (1996) Woody Wilson |
 | Attack of the 5 Ft. 2 Women (1994) Weirdo |
 | Future Shock (1994) Mr. Johnson |
 | Sister Act 2: Back in the Habit (1993) Competition Announcer |
 | Eye of the Stranger (1993) Oli |
 | Squanderers (1993) Peter Chisholm |
 | Tom and Jerry: The Movie (1992) Straycatcher #2 (voice) |
 | Miracle Beach (1992) Tooth Fairy |
 | Judgement (1992) Dr. Henry Silver |
 | Deep Cover (1992) Gopher |
 | Cool as Ice (1991) Roscoe |
 | Shakes the Clown (1991) Peppy the Clown |
 | The Art of Dying (1991) Wallie |
 | Don't Tell Mom the Babysitter's Dead (1991) Franklin |
 | Committed (1991) Gow |
 | Smoothtalker (1990) Mr. Nathan |
 | Pacific Palisades (1990) Mr. Beer |
 | Out on Bail (1989) Otis T. Smiley |
 | Curse II: The Bite (1989) George |
 | Tale of Two Sisters (1989) Dad |
 | Sonny Boy (1989) Charlie P. |
 | The Further Adventures of Tennessee Buck (1988) Wolfgang Meyer |
 | Lady in White (1988) Mr. Lowry |
 | Body Slam (1986) Shapiro |
 | Ratboy (1986) Lee 'Dial-A-Prayer' |
 | Stitches (1985) Sheldon Mendlebaum |
 | Silent Madness (1984) Sheriff Liggett |
 | Monaco Forever (1984) American Tourist |
 | Joe Dancer III: The Big Trade (1983) Phil Estin |
 | Fast-Walking (1982) Ted |
 | Partners (1982) Photo Shoot Assistant (uncredited) |
 | Pandemonium (1982) Man in Bus Station |
 | History of the World: Part I (1981) Applecore Vendor - The French Revolution (as Sidney Lassick) |
 | Damien: The Leper Priest (1980) Supt. Rudolph Meyer |
 | The Unseen (1980) Ernest Keller |
 | Alligator (1980) Gutchel |
 | Skatetown, U.S.A. (1979) Murray |
 | Hot Stuff (1979) Hymie |
 | The Cracker Factory (1979) Ernie |
 | Amore, piombo e furore (1978) Sheriff's Friend |
 | The Billion Dollar Hobo (1977) Mitchell |
 | The Happy Hooker Goes to Washington (1977) Percy Bowdler |
 | Carrie (1976) Mr. Fromm |
 | Serpico: The Deadly Game (1976) Goldman |
 | One Flew Over the Cuckoo's Nest (1975) Charlie Cheswick |
 | Sinderella and the Golden Bra (1964) Fairy Godfather |
 | Paratroop Command (1959) Interpreter |
 | The Bonnie Parker Story (1958) Scout Master |
 | Amazing Stories: The Movie III (archive footage) |