The Manhattan Project

The Manhattan Project Cast

56 cast members · 25 with popularity data

#8,373 movie today

Most Popular The Manhattan Project Cast Members

John Lithgow is currently the most popular The Manhattan Project cast member online with an Attention Score of 2.8. Updated October 23, 2026.

Richard Jenkins

Radiation Controls Officer

Lt. Col. Conroy

Robert Sean Leonard

Background (uncredited)

Laser Efficiency Kid (as Richard Cardona)

#14,470 overall

#14,887 overall

#14,932 overall

Timothy Carhart

#17,357 overall

Jill Eikenberry

Elizabeth Stephens

#19,813 overall

Robert Schenkkan

Government Aide

#21,704 overall

C-4 Guy (uncredited)

#23,958 overall

Christopher Collet

#29,728 overall

Eccles (as John David Cullum)

#31,797 overall

#35,240 overall

Science Teacher

#39,397 overall

#39,836 overall

#43,518 overall

Richard Council

Government Aide

#49,968 overall

#53,065 overall

#56,835 overall

#60,365 overall

#61,279 overall

Roland (as Abe Unger)

Geoffrey Nauffts

Katherine Hiler

Harlan Cary Poe

Jenny's Brother

Jenny's Brother

Conroy's Lieutenant

Price (as Charlie Fields)

Heather Rose Dominic

Bruce Smolanoff

Injection Doctor

FBI (as Alec Massey)

Edward D. Murphy

Barbara Collins - TV Reporter

Helicopter Pilot

Michael Telesco

Day Security Receptionist

Richard Caselnova

Frank Ferrara Sr.

Jimmie Ray Weeks

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