Guest Stars David Lewis as Lawrence Hartley Caroline Cave as Ann O'Malley Jared Ager-Foster as Peter Landry Brian Markinson as Dr. Roger Perrault Ricardo Ortiz as Ryan Sanders Amitai Marmorstein as Paul Kirpatrick Lossen Chambers as Liz Byrne Anna Galvin as Dr. Kim Matthews Eric Keenleyside as Dr. Martin Davey Kimberly Sustad as Caitlyn Hartley Aadila Dosani as Marta Kirpatrick Robert Moloney as Dr. Derek Naylor Eric Breker as Dr. John Derrick John Emmet Tracy as Sam Millhouse Trinity Likins as Child Emma Landry Alistair Abell as Ed Wilmont Jay Brazeau as Dr. John Furesz Max Montesi as Spider Barclay Hope as Principal Southwood Nels Lennarson as Norm Crawley Peter Flemming as Dr. Inwood Stefania Indelicato as Rachel Jan Bos as Dr. Terry Todd Thomson as 40 Year Old Man Scott Patey as 30 Year Old Man Cameron Bancroft as Michael Rodell Amber Taylor as Jessica Dean Monroe McKenzie as Hassle Free Clinic Doctor Maria Turner as Mother at OHS Meeting