Dylan Neal

as Jake

as Daniel Booker(3 eps)

as Tripp

as Henry Ross

as Eric

as Bob

as Dr. Sampson(1 ep)

as Jasper Linney

as Henry Ross

as Bob

as Terry Evans

as Henry Ross

as Henry Ross

as Henry Ross

as Bob

as Gabe

as Hugh Dinsman

as Jack Griffith(36 eps)

as Shawn Mitchell(1 ep)

as Dr. Anthony Ivo(10 eps)

as Washburn Milter(1 ep)

as Tom

as Neil Conroy

as Brian Warner

as Nick

as Detective Alexander Black

as Dr. Hanson / Russell Dempsey(1 ep)

as Hugh Underwood(1 ep)

as Hermes

as Bruce Jackson(1 ep)

as Wes Gibson(1 ep)

as Jason Darcie

as Ryan Stewart

as William Paddington(1 ep)

as Sergeant Jasper Linney(1 ep)

as Guy DeMayo

as Stuart St. Clair

as Mike Celluci(22 eps)

as Jann(1 ep)

as Robert(2 eps)

as Jack Collins

as Dan Dryer

as James

as Lt. Col. Ben Fordham(1 ep)

as Dr. Jonathan Vogel(1 ep)

as Dan Dyrer

as Lance

as Trevor Mallard(1 ep)

as Harley's Date(1 ep)

as Dave Sheppard(1 ep)

as Sean

as John(1 ep)

as Patrick Hale(1 ep)

as Dr. Ellison(1 ep)

as Young Brian Sanger

as David Martell

as David White(1 ep)

as David

as Ray Sacks(2 eps)

as Deke Slater

as Zack(1 ep)

as Nick Sweeny(17 eps)

as Doug Witter(20 eps)

as Royce(1 ep)

as Cory Robbins(13 eps)

as Robert

as Aaron Jacobs(10 eps)

as Philip Nichols(1 ep)

as John Wallace

as Dalton 'Boomer' Jonas(4 eps)

as Carl

as Jim Reardon(1 ep)

as Matt(1 ep)

as Bo Riddley(1 ep)

as Andrew

as Scavenger(1 ep)