Guest Stars Tony Shalhoub as Dr. Chester Ray Banton Kevin McNulty as Dr. Christopher Davey 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