The Manhattan Project

The Manhattan Project Cast

56 cast members · 25 with popularity data

Full Cast

Sorted by Buzz Score · June 6, 2026

Richard Jenkins

Radiation Controls Officer

Lt. Col. Conroy

Robert Sean Leonard

Laser Efficiency Kid (as Richard Cardona)

Background (uncredited)

#14,893 overall

Jill Eikenberry

Elizabeth Stephens

#18,436 overall

Timothy Carhart

#18,618 overall

#18,669 overall

#19,149 overall

Robert Schenkkan

Government Aide

#19,182 overall

#19,688 overall

Science Teacher

#22,827 overall

C-4 Guy (uncredited)

#26,812 overall

Christopher Collet

#27,724 overall

Eccles (as John David Cullum)

#29,849 overall

#37,055 overall

#39,087 overall

#40,598 overall

#52,914 overall

Richard Council

Government Aide

#55,925 overall

#57,347 overall

#63,289 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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