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 9.5. 3 of 52 cast members rank in the top 1,000 actors online today. Updated August 2, 2026.

Natasha Richardson

Gen. Leslie R. Groves

Kathleen Robinson

Michael Merriman

John C. McGinley

Richard Schoenfield

Kitty Oppenheimer

Melrose Hayden Barry

Alan Oppenheimer

J. Robert Oppenheimer

#10,355 overall

Whitney Ashbridge

#12,565 overall

#18,136 overall

#20,635 overall

Dr. Kenneth Whiteside

#21,390 overall

#23,595 overall

Mary Pat Gleason

#25,272 overall

#25,873 overall

Walker Edmiston

#27,519 overall

#31,985 overall

Brehon Somervell

#32,471 overall

Oakridge Doctor

#39,797 overall

Krzysztof Pieczyński

#45,119 overall

#45,194 overall

#56,343 overall

Steven Baigelman

#61,125 overall

George Kistiakowsky

#66,100 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