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 Lossen Chambers as Liz Byrne Amitai Marmorstein as Paul Kirpatrick Eric Keenleyside as Dr. Martin Davey Anna Galvin as Dr. Kim Matthews 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 Max Montesi as Spider Jay Brazeau as Dr. John Furesz Barclay Hope as Principal Southwood Nels Lennarson as Norm Crawley Peter Flemming as Dr. Inwood Jan Bos as Dr. Terry Cameron Bancroft as Michael Rodell Stefania Indelicato as Rachel Scott Patey as 30 Year Old Man Todd Thomson as 40 Year Old Man Amber Taylor as Jessica Dean Monroe McKenzie as Hassle Free Clinic Doctor Maria Turner as Mother at OHS Meeting