Arthur

Dudley Moore

Arthur Bach

Liza Minnelli

Linda Marolla

John Gielgud

Hobson

Geraldine Fitzgerald

Martha Bach

Jill Eikenberry

Susan Johnson

Stephen Elliott

Burt Johnson

Ted Ross

Bitterman

Barney Martin

Ralph Marolla

Thomas Barbour

Stanford Bach

Anne DeSalvo

Gloria

Marjorie Barnes

Hooker

Dillon Evans

Plaza Maitre D'

Maurice Copeland

Uncle Peter

Justine Johnston

Aunt Pearl

Paul Vincent

Plaza Waiter

Mary Alan Hokanson

Secretary

Paul Gleason

Executive

Phyllis Somerville

Saleslady

Irving Metzman

Security Guard

Joe Doolan

Kid in Street