Peter Falk and Robert Stack in The Untouchables (1959)

Leslie Nielsen and Mary Sinclair in The Untouchables (1959)

Leslie Nielsen and Howard Storm in The Untouchables (1959)

Anthony George, Ned Glass, and Robert Stack in The Untouchables (1959)

Ned Glass and Robert Stack in The Untouchables (1959)

Nicholas Georgiade, Jim Hayward, and Robert Stack in The Untouchables (1959)

Anthony George and Richard Rust in The Untouchables (1959)

Anne Francis, Christopher Dark, and Robert Stack in The Untouchables (1959)

Anne Francis and Christopher Dark in The Untouchables (1959)

Anne Francis and Connie Hines in The Untouchables (1959)

Abel Fernandez, Steve London, Robert Middleton, and Robert Stack in The Untouchables (1959)

Sterling Holloway, Eleanor Audley, and Robert Stack in The Untouchables (1959)

Claude Akins, Anthony George, and Robert Stack in The Untouchables (1959)

Robert Middleton and Robert Stack in The Untouchables (1959)

Robert Stack and George Voskovec in The Untouchables (1959)

Michael Ansara in The Untouchables (1959)

"The Untouchables" Paul Picerni, Robert Stack circa 1961

Robert Stack on the set of "The Untouchables" c. 1961

Cloris Leachman at an event for The Untouchables (1959)

Abel Fernandez, Nicholas Georgiade, Paul Picerni, and Robert Stack in The Untouchables (1959)

Abel Fernandez, Nicholas Georgiade, and Robert Stack in The Untouchables (1959)

Jay Adler, Allen Jaffe, and Sam Levene in The Untouchables (1959)

Nicholas Georgiade and Sam Levene in The Untouchables (1959)

Allen Jaffe and Sam Levene in The Untouchables (1959)

Frank Gorshin and Albert Paulsen in The Untouchables (1959)

Milton Selzer and Toni Tucci in The Untouchables (1959)

Paul Picerni, Robert Stack, and Toni Tucci in The Untouchables (1959)

Anne Francis and Robert Stack in The Untouchables (1959)