
John Marley
Biography
John Marley (October 17, 1907 – May 22, 1984) was an American actor who was known for his role as Phil Cavalleri in Love Story and as Jack Woltz— the defiant movie mogul who awakens to find the severed head of his prized horse in his bed—in The Godfather (1972). He starred in John Cassavetes' breakthrough feature Faces (1968) and appeared in The Glitter Dome (1984).
Description above from the Wikipedia article John Marley, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Filmography

The Godfather: The Complete Epic 1901–1959
2016
as Jack Woltz

Faces
2011
as Richard Forst (archive footage)

The Godfather Trilogy: 1901-1980
1992
as Jack Woltz

On the Edge
1986
as Elmo

The Glitter Dome
1984
as Capt. Woofer

Utilities
1983
as Roy Blue

Robbers Of The Sacred Mountain
1982
as Christopher Falcon

Mother Lode
1982
as Elijha

The Amateur
1981
as Molton

Threshold
1981
as Edgar Fine

Word of Honor
1981
as Gordon Agee

Tribute
1980
as Lou Daniels

This Year's Blonde
1980
as Joe Schenck

Hooper
1978
as Max Berns

It Lives Again
1978
as Mr. Mallory

The Private Files of J. Edgar Hoover
1977
as Dave Hindley

Telethon
1977
as Arnold Shagan

The Greatest
1977
as Dr. Ferdie Pacheco

The Car
1977
as Everett

Kid Vengeance
1976
as Jesus

W.C. Fields and Me
1976
as Harry Bannerman, Studio Head

Framed
1975
as Sal Viccarrone

Dead of Night
1974
as Charles Brooks

Blade
1973
as Tommy Blade