Fat Man and Little Boy

Fat Man and Little Boy Cast

52 cast members · 27 with popularity data

Full Cast

Sorted by Buzz Score · June 23, 2026

Gen. Leslie R. Groves

Michael Merriman

John C. McGinley

Richard Schoenfield

Kathleen Robinson

Natasha Richardson

Kitty Oppenheimer

Melrose Hayden Barry

J. Robert Oppenheimer

Alan Oppenheimer

#13,547 overall

Whitney Ashbridge

#14,813 overall

Dr. Kenneth Whiteside

#17,222 overall

#21,972 overall

#22,227 overall

#23,663 overall

#25,357 overall

Mary Pat Gleason

#25,824 overall

Brehon Somervell

#26,042 overall

Walker Edmiston

#28,012 overall

#30,325 overall

Oakridge Doctor

#39,260 overall

#39,807 overall

#50,039 overall

Steven Baigelman

#60,369 overall

Krzysztof Pieczyński

#63,671 overall

George Kistiakowsky

#66,689 overall

Michael Brockman

William "Deke" Parsons

Seth Neddermeyer

Donald MacKechnie

Frank Benettieri Jr.

Roger Cubicciotti

Frank Oppenheimer

Franco Cutietta

Robert Peter Gale

Dr. Louis Hempelman

Wesley Harrison

Peter Oppenheimer

Peter Oppenheimer

David C. Parnes

Harold McDonald

Bill Rubenstein

Ken Strausbaugh

Observation Officer

Walter Sullivan

Dennis Talmudge

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