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

Laura Dern is currently the most popular Fat Man and Little Boy cast member online with a Attention Score of 28.4. 3 of 52 cast members rank in the top 1,000 actors online today. Updated July 13, 2026.

Kathleen Robinson

Gen. Leslie R. Groves

Natasha Richardson

Michael Merriman

Melrose Hayden Barry

John C. McGinley

Richard Schoenfield

Kitty Oppenheimer

J. Robert Oppenheimer

Whitney Ashbridge

#11,767 overall

Alan Oppenheimer

#12,250 overall

#13,889 overall

Dr. Kenneth Whiteside

#20,268 overall

#21,196 overall

#21,789 overall

#24,607 overall

Mary Pat Gleason

#26,854 overall

Walker Edmiston

#27,760 overall

#30,075 overall

Brehon Somervell

#30,351 overall

#31,109 overall

Oakridge Doctor

#39,839 overall

#46,609 overall

Krzysztof Pieczyński

#52,664 overall

#55,932 overall

Steven Baigelman

#60,280 overall

George Kistiakowsky

#61,604 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

televisionstats.com