The Manhattan Project

The Manhattan Project Cast

56 cast members · 25 with popularity data

Full Cast

Sorted by Buzz Score · May 16, 2026

Richard Jenkins

Radiation Controls Officer

Lt. Col. Conroy

Robert Sean Leonard

Background (uncredited)

Laser Efficiency Kid (as Richard Cardona)

Robert Schenkkan

Government Aide

#14,545 overall

Jill Eikenberry

Elizabeth Stephens

#17,052 overall

#18,440 overall

Timothy Carhart

#20,516 overall

#20,659 overall

C-4 Guy (uncredited)

#22,237 overall

#25,630 overall

Eccles (as John David Cullum)

#27,550 overall

Christopher Collet

#29,476 overall

Science Teacher

#34,643 overall

#37,836 overall

#42,290 overall

Richard Council

Government Aide

#49,887 overall

#51,635 overall

#57,472 overall

#58,988 overall

#64,253 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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