John Joseph Edward Cassidy (March 5, 1927 – December 12, 1976) was an American actor, singer, and theater director best known for his roles in The Eiger Sanction (1975), He And She (1967–68), and Look In Any Window (1961). He also earned a Tony Award for his performance in the Broadway musical She Loves Me (1963–64).
He was married to Evelyn Ward and Shirley Jones and had four children: David Cassidy (with Ward), Shaun Cassidy, Patrick Cassidy, and Ryan Cassidy (with Jones). His granddaughter is Katie Cassidy.
Cassidy died in 1976 at the age of 49 after dying in a fire started by a cigarette he was smoking.
Works Jack Cassidy appeared in:
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Film roles
- 1961: Look In Any Window as Gareth Lowell
- 1962: Mr. Magoo's Christmas Carol as Bob Cratchit/Dick Wilkins
- 1963: FBI Code 98 as Walter Macklin
- 1970: The Cockeyed Cowboys Of Calico County as Roger Hand
- 1970: The Andersonville Trial as Otis Baker
- 1970: George M as Jeremiah 'Jerry' Cohan
- 1971: Bunny O Hare as Lt. Horace Greeley
- 1972: Your Money Or Your Wife as Josh Darwin
- 1973: A Time For Love as Tom Pierson
- 1974: The Phantom Of Hollywood as Otto Vonner/Karl Vonner
- 1975: Death Among Friends as Chico Donovan
- 1975: The Eiger Sanction as Miles Mellough
- 1975: Knuckle as Patrick Delafield
- 1975: Deans Place as Jacques
- 1976: WC Fields And Me as John Barrymore
- 1977: Benny And Barney Las Vegas Undercover as Jules Rosen
- 1977: The Private Files Of J Edgar Hoover as Damon Runyon
Television roles
- 1957: Lux Video Theatre as Denis/Dr. Frederick Steele (2 episodes)
- 1958: Richard Diamond Private Detective as Danny Fortune
- 1958: Gunsmoke as Marcus France
- 1960: The Chevy Mystery Show as David Townsend
- 1961: Wagon Train as Dan Palmer
- 1961: Lock Up as Vincent Gibson
- 1961: General Electric Theater as Alan Richards
- 1961: Alfred Hitchcock Presents as Mark Lansing
- 1961: Maverick as Roger Cushman
- 1961: Hawaiian Eye as Maurice Clifford
- 1961–62: Bronco as Marshal Bill Hickok/Edward Miller (2 episodes)
- 1962: 77 Sunset Strip as Dick Arnador
- 1962: Everglades as Ron Fairburn
- 1962: Surfside 6 as Val Morton
- 1962: Hennesey as Chaplain
- 1962: The Real Mc Coys as Jack Masters
- 1962: The Dick Powell Theatre as Roth
- 1963: Wide Country as Jerry Manning
- 1964: Mr Broadway as Allan
- 1965: The Alfred Hitchcock Hour as Arthur Mannix
- 1965: The Lucy Show as Prof. Zoorkin
- 1967: I Spy as Nick Fleming
- 1967: The Girl from U.N.C.L.E. as Rock Mussin
- 1967: Coronet Blue as Spangler
- 1967–68: He And She as Oscar North
- 1968: Get Smart as Mr. Bob
- 1968–70: Bewitched as George Dinsdale/Rance Butler (2 episodes)
- 1969: That Girl as Marty Haines
- 1970: Matt Lincoln as Doug Conway
- 1970: The Governor And JJ as Mark Ellison
- 1970–71: Rowan and Martin's Laugh-In as Various (2 episodes)
- 1970–72: Love, American Style as Frank/Fred/Chuck Fuller (3 episodes)
- 1971: The Mod Squad as Perry Lemko
- 1971: Night Gallery as Marius Davis
- 1971: Men At Law as Dr. William Parkman
- 1971: Alias Smith and Jones as Harry Wagener
- 1971: The Mary Tyler Moore Show as Hal Baxter
- 1971: Bonanza as Kevin O'Casey
- 1971: Sarge as John Michael O'Flaherty
- 1971–76: Columbo as The Great Santini/Riley Greenleaf/Ken Franklin (3 episodes)
- 1972: Mission: Impossible as Orin Kerr
- 1972: Banyon as Grey Gloves
- 1973: Barnaby Jones as Craig Woodridge
- 1973: Orson Welles Great Mysteries as Pennington
- 1974: Cannon as Gen. James O'Hara
- 1974: Great Performances as Paul Sears
- 1975: Matt Helm as Buckman
- 1975: Hawaii Five-O as Morwood
- 1977: McCloud as Lord Charles Bridges
- 1977: The Feather And Father Gang as Bishop
Short film roles
- 1974: Mc Masters Of Sweetwater as McMasters
- 1974: Fools Females And Fun as Danny Holliday
Theatre roles
- 1963–64: She Loves Me as Steven Kodaly
