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The Manhattan Project
Cast
56 cast members · 25 with popularity data
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Sorted by Buzz Score · April 26, 2026
1
John Lithgow
John Mathewson
3.7
#1,393 overall
2
John Mahoney
Lt. Col. Conroy
2.2
#2,835 overall
3
Robert Sean Leonard
Max
2.0
#3,179 overall
4
Richard Jenkins
Radiation Controls Officer
1.9
#3,355 overall
5
Debbie Gibson
Background (uncredited)
1.9
#3,356 overall
6
Cynthia Nixon
Jenny Anderman
1.5
#4,338 overall
7
Steve Blum
Laser Efficiency Kid (as Richard Cardona)
0.9
#7,183 overall
8
Robert Schenkkan
Government Aide
0.6
#9,760 overall
9
Dan Butler
SWAT
0.4
#13,441 overall
10
Jill Eikenberry
Elizabeth Stephens
0.3
#16,639 overall
11
Fred Melamed
Howard
0.2
#18,508 overall
12
Peter McRobbie
Electronics
0.2
#19,692 overall
13
Timothy Carhart
Relief Guard
0.2
#19,885 overall
14
Ned Eisenberg
C-4 Guy (uncredited)
0.1
#26,095 overall
15
Bran Ferren
Lab Assistant
0.1
#28,147 overall
16
Gregg Edelman
Science Teacher
0.1
#28,594 overall
17
JD Cullum
Eccles (as John David Cullum)
0.1
#28,911 overall
18
Christopher Collet
Paul Stephens
0.1
#30,093 overall
19
Bruce Jarchow
Interrogator
0.1
#33,143 overall
20
Sully Boyar
Night Guard
0.1
#36,508 overall
21
Warren Keith
Computer
0.0
#47,848 overall
22
Ned Schmidtke
Jenny's Parent
0.0
#48,489 overall
23
Richard Council
Government Aide
0.0
#50,053 overall
24
David Quinn
Tennis
0.0
#56,101 overall
25
Warren Manzi
Day Attendant
0.0
#63,749 overall
26
Abraham Unger
Roland (as Abe Unger)
—
27
Sarah Burke
Jenny's Parent
—
28
Paul Austin
General
—
29
Adrian Sparks
Scientist
—
30
Curt Dempster
Scientist
—
31
Geoffrey Nauffts
Craig
—
32
Katherine Hiler
Emma
—
33
Trey Cummins
Terry
—
34
Steve Borton
Local FBI
—
35
Harlan Cary Poe
Local FBI
—
36
Allen DeCheser
Jenny's Brother
—
37
Artie DeCheser
Jenny's Brother
—
38
Fred G. Smith
Conroy's Lieutenant
—
39
Manny Jacobs
Moore
—
40
Charles Fields
Price (as Charlie Fields)
—
41
Eric Hsiao
Saito
—
42
Heather Rose Dominic
Flirting Kid
—
43
Bruce Smolanoff
Flirting Kid
—
44
John Doumanian
Cabbie
—
45
Tom Tarpey
Injection Doctor
—
46
Roger Caine
FBI (as Alec Massey)
—
47
Edward D. Murphy
FBI
—
48
Joan Harris
Barbara Collins - TV Reporter
—
49
Ken Chapin
Command
—
50
Stephen Markle
Interrogator
—
51
Al Cerullo
Helicopter Pilot
—
52
Michael Telesco
Day Security Receptionist
—
53
Richard Caselnova
SWAT
—
54
Frank Ferrara Sr.
SWAT
—
55
Jimmie Ray Weeks
SWAT
—
56
Steve Zettler
SWAT
—
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