
John Joseph Edward “Jack” Cassidy (March 5, 1927 – December 12, 1976) was an American actor of stage, film and screen.
His frequent professional persona was that of an urbane, super-confident egotist with a dramatic flair, much in the manner of Broadway actor Frank Fay. Cassidy perfected this character to such an extent that he was cast as the legendary John Barrymore in the feature film W.C. Fields and Me. The role of the vain, shallow, buffoon-like newsman Ted Baxter on TV's The Mary Tyler Moore Show (1970–1977) was written with Cassidy in mind. However, Cassidy turned down the role, feeling that it was not right for him, and the part went to Ted Knight. Cassidy later appeared as a guest star in a 1971 episode as Ted's highly competitive and equally egocentric brother, Hal.
Description above from the Wikipedia article Jack Cassidy, licensed under CC-BY-SA, full list of contributors on Wikipedia.

The Eiger Sanction
1975 · as Miles Mellough

June Moon
1974 · as Paul Sears

The Andersonville Trial
1970 · as Otis Baker

Your Money or Your Wife
1972 · as Josh Darwin

Death Among Friends
1975 · as Chico Donovan

Mister Magoo's Christmas Carol
1962 · as Bob Cratchit (voice)

George M!
1970 · as Jerry Cohan

The Private Files of J. Edgar Hoover
1977 · as Damon Runyon

W.C. Fields and Me
1976 · as John Barrymore

Bunny O'Hare
1971 · as Lieutenant Horace Greeley

Benny & Barney: Las Vegas Undercover
1977 · as Jules Rosen

Look in Any Window
1961 · as Gareth Lowell

The Cockeyed Cowboys of Calico County
1970 · as Roger Hand

The Phantom of Hollywood
1974 · as Otto Vonner / Karl Vonner

FBI Code 98
1963 · as Walter Macklin

A Time For Love
1973 · as Tom Pierson

Annie: The Women in the Life of a Man
1970 · as Himself

Knuckle
1975 · as Patrick Delafield