Michael Biehn was born on July 31, 1956 in Anniston, Alabama, grew up in Lincoln, Nebraska, and at age 14 he moved with his family to Lake Havasu, Arizona, where he won a drama scholarship to the University of Arizona. He left prematurely two years later to pursue an acting career in Hollywood. His first big role was as a psychotic fan stalking Lauren Bacall in The Fan (1981) and later appeared in The Lords of Discipline (1983). He hit the big-time when he was cast as Kyle Reese, the man sent back through time to stop Arnold Schwarzenegger in James Cameron's The Terminator (1984).  Biehn is married and the father of four sons.

Karen Cliché was born on 22 July 1976 in Sept-Iles, Quebec, Canada, Karen graduated from Rosemount High School in Montreal, Quebec, Canada in 1993. Before getting into acting, she was a world-traveling model for Ralph Lauren and others.

Jesse Nilsson was active in the dramatic arts from a young age, and was no stranger to Canadian TV. He received his dramatic education at Ryerson Theatre School in Toronto, Canada. Tragically, Jesse Nilsson passed away in the age of 25 in Toronto on April 26, 2003, due to heart failure. He had been suffering from pneumonia for the two weeks prior to his death but was on the road to recovery.

Co-executive producer Adam Haight said that they chose Mr. Nilsson for the role because of his looks and youth.

We were looking for a character that was 20-30. Mr. Haight said."We looked at a number of guys and we cast Jesse in the last throes before production began. There was something very handsome and very youthful about him, so we jumped on him. Jesse just seemed to fit that role kind of well."