The Manhattan Project

The Manhattan Project Cast

56 cast members · 25 with popularity data

Most Popular The Manhattan Project Cast Members

John Lithgow is currently the most popular The Manhattan Project cast member online with a Attention Score of 2.8. Updated October 2, 2026.

Richard Jenkins

Radiation Controls Officer

Robert Sean Leonard

Lt. Col. Conroy

Background (uncredited)

Laser Efficiency Kid (as Richard Cardona)

#14,483 overall

#14,894 overall

#15,114 overall

Jill Eikenberry

Elizabeth Stephens

#20,981 overall

Timothy Carhart

#21,119 overall

C-4 Guy (uncredited)

#23,702 overall

Robert Schenkkan

Government Aide

#23,689 overall

Christopher Collet

#26,868 overall

Science Teacher

#32,856 overall

Eccles (as John David Cullum)

#32,838 overall

#38,640 overall

#40,308 overall

#44,657 overall

Richard Council

Government Aide

#50,990 overall

#55,616 overall

#59,262 overall

#63,504 overall

#67,996 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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