Fat Man and Little Boy

Fat Man and Little Boy Cast

52 cast members · 27 with popularity data

Most Popular Fat Man and Little Boy Cast Members

Natasha Richardson is currently the most popular Fat Man and Little Boy cast member online with a Attention Score of 25.1. 3 of 52 cast members rank in the top 1,000 actors online today. Updated September 13, 2026.

Natasha Richardson

Gen. Leslie R. Groves

Kathleen Robinson

Michael Merriman

Kitty Oppenheimer

John C. McGinley

Richard Schoenfield

J. Robert Oppenheimer

Melrose Hayden Barry

Whitney Ashbridge

#10,174 overall

#10,806 overall

Alan Oppenheimer

#12,703 overall

#17,314 overall

#21,803 overall

#22,146 overall

#23,221 overall

Dr. Kenneth Whiteside

#23,960 overall

Mary Pat Gleason

#26,898 overall

#27,561 overall

Brehon Somervell

#29,188 overall

Walker Edmiston

#30,539 overall

Oakridge Doctor

#35,903 overall

#45,122 overall

Krzysztof Pieczyński

#49,293 overall

#51,040 overall

Steven Baigelman

#58,510 overall

George Kistiakowsky

#63,942 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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