Guest Stars Kevin McNulty as Dr. Christopher Davey Tony Shalhoub as Dr. Chester Ray Banton Kate Twa as Detective Kelly Ryan Co Starring Steve Bacic as Officer #2 Forbes Angus as Government Scientist Donna Yamamoto as Night Nurse Guyle Fraizer as Barney Craig Bruhnanski as Security Guard Robert Rozen as Doctor Nathaniel DeVeaux as Detective Barron