Michael Shanks

役 Dr. Charles "Charlie" Harris

Erica Durance

役 Dr. Alex Reid

Benjamin Ayres

役 Dr. Zachary "Zach" Miller

Julia Chan

役 Dr. Maggie Lin

Husein Madhavji

役 Dr. Shahir Hamza

Joseph Pierre

役 Nurse Jackson Wade

Michelle Nolden

役 Dr. Dawn Bell

Daniel Gillies

役 Dr. Joel Goran

Wendy Crewson

役 Dr. Dana Kinney

Milton Barnes

役 Dr. Wayne Sharpe