Cast of
Critical Mass

About Critical Mass

Jeffers works security at a nuclear power plant. The plant is being decommissioned, and a politician is touring the plant and videotaping his comments regarding the closing. A terrorist group led by Samson gets inside the gates, with their ultimate goal the detonation of a nuclear bomb inside the plant. After local policemen and the other plant workers are killed, Jeffers and Janine alone must confront and halt Samson and his terrorist squad. Written by Ken Miller

Full Cast of Critical Mass

Treat Williams
plays Mike Jeffers

Treat Williams as Mike Jeffers

Richard Treat Williams (December 1, 1951 – June 12, 2023) was an American actor, author, and aviator. Williams' accol...

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Lori Loughlin
plays Janine

Udo Kier
plays Samson

Blake Clark
plays Sheriff Borden

Jack Betts
plays Atty. Gen. Ames

Jack Betts as Atty. Gen. Ames

Jack Betts was born on April 11, 1929 in Jersey City, New Jersey, USA. He is an actor, known for Spider-Man (2002), F...

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Richard Anthony Crenna
plays Tanner

Richard Anthony Crenna as Tanner

Richard Anthony Crenna was born on June 29, 1959 and is currently 64 years old.

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Charles Cyphers
plays Henderson

Neil Delama
plays Peterson

Charles Emmett
plays Steve Johnson

David "Shark" Fralick
plays Rand

Nathan Le Grand
plays Jack Thomas


Crew of Critical Mass

Discover the backstage crew of Critical Mass →