肖恩·派特里克·弗兰纳里

Sean Patrick Flanery

饰：Alex Brooks

阿诺德·沃斯洛

Arnold Vosloo

饰：Anton Simeonov

蒂姆·汤默逊

Tim Thomerson

饰：Bill Barnes

Steve O'Neill

Steve O'Neill

饰：Colonel Bennett

乌苏拉·卡尔文

Ursula Karven

饰：Natalya

弗兰克·格里什

Frank Gerrish

饰：Bruno

Michael Flynn Michael Flynn

Michael Flynn

饰：Jeffreys

罗德尼·伊士曼

Rodney Eastmen

饰：Ricky

乔伊·维斯特

Joel West

饰：Zednik

伊尔·波戴尔

Eyal Podell

饰：Rudy

Michael Kagan

Michael Kagan

饰：Commissioner Dunn

Loren Dennis

饰：Marine #16

Stevie Johnson

Stevie Johnson

饰：Jensen

Ken McConnell

饰：Chief Engineer

Dave Shipp

饰：Razvan

Lance C. Williams

Lance C. Williams

饰：Carl,(as Lance Williams)

Ed Cameron

饰：Leon

J.帕特里克·麦克康尔马克

J. Patrick McCormack

饰：Agent Rowe,(as John Patrick McCormack)

Alisa Harris

Alisa Harris

饰：Lola

Sean Marble

Sean Marble

饰：Jesse