Arnold Schwarzenegger ... Jack Slater
F. Murray Abraham ... John Practice
Art Carney ... Frank
Charles Dance ... Benedict
Frank McRae ... Dekker
Tom Noonan ... Ripper / Tom Noonan
Robert Prosky ... Nick
Anthony Quinn ... Vivaldi
Mercedes Ruehl ... Mom
Austin O'Brien ... Danny
Ian McKellen ... Death (as Sir Ian McKellan)
Professor Toru Tanaka ... Tough Asian Man
Joan Plowright ... Teacher
Keith Barish ... Keith Barish
Jim Belushi ... James Belushi
Chevy Chase ... Chevy Chase
Chris Connelly ... Chris Connelly
Karen Duffy ... Karen Duffy
Larry Ferguson ... Larry Ferguson
Leeza Gibbons ... Leeza Gibbons
M.C. Hammer ... M.C. Hammer (as Hammer)
Little Richard ... Little Richard
Robert Patrick ... T-1000
Maria Shriver ... Maria Shriver
Sharon Stone ... Catherine Trammell
Jean-Claude Van Damme ... Jean-Claude Van Damme
Melvin Van Peebles ... Melvin Van Peebles
Damon Wayans ... Damon Wayans
Jason Kelly ... Lieutenant Governor
Noah Emmerich ... Rookie
Tina Turner ... The Mayor
Billy D. Lucas ... SWAT Cop (as Billy Lucas)
Ryan Todd ... Andrew Slater
Apollo Dukakis ... Polonius
Patrick Flanagan ... Punk
Donald C. Llorens ... Monoghan
Michael Chieffo ... Monroe
Mike Muscat ... Cop in L.A. Station
John Finnegan ... Watch Commander
Bobbie Brown ... Video Babe (as Bobbie Brown-Lane)
Angie Everhart ... Video Babe
Bridgette Wilson-Sampras ... Whitney / Meredith (as Bridgette Wilson)
Jeffrey Braer ... Skeezy
Anthony Peck ... Cop at Ex-Wife's House
Paul Gonzales ... Cop #2 in LA Station
Anna Navarro ... Cop in Station
Dex Elliott Sanders ... Mitchell (as Dex Sanders)
Nick Dimitri ... Doctor (Funeral)
Sven-Ole Thorsen ... Gunman
Rick Ducommun ... Ripper's Agent
Wendle Josepher ... Candy Girl
Michael V. Gazzo ... Torelli
Lee Reherman ... Krause
R.C. Bates ... Rabbi
Colleen Camp ... Ratcliff
Donna Borghoff ... Hooker
John McTiernan Sr. ... Cigar Stand Man
Tiffany Lynne Puhy ... Autograph Seeker (as Tiffany Puhy)
Danny DeVito ... Whiskers (voice) (uncredited)