George Hamilton

Moss Hart

Jason Robards

George S. Kaufman

Jack Klugman

Joe Hyman

Sam Levene

Richard Maxwell

Ruth Ford

Beatrice Kaufman

Eli Wallach

Warren Stone

Joseph Leon

Max Seigel

George Segal

Lester Sweyd

Sam Groom

David Starr

Louise Larabee

Clara Baum

David Doyle

Oliver Fisher

Jonathan Goldsmith

Teddy Manson

Bert Convy

Archie Leach

Kenneth Mars

Robert E. Sherwood

Roger C. Carmel

Hotel Clerk (uncredited)

Earl Montgomery

Alexander Woollcott