Guest Stars David Lewis as Lawrence Hartley Caroline Cave as Ann O'Malley Levi Meaden as Peter Landry Brian Markinson as Dr. Roger Perrault Alex Rose as Ryan Sanders Amitai Marmorstein as Paul Kirpatrick Lossen Chambers as Liz Byrne Anna Galvin as Dr. Kim Matthews Mackenzie Cardwell as Adult Emma Landry Eric Keenleyside as Dr. Martin Davey Paul Piaskowski as Dr. Christos Tsoukas Diana Bang as Ruby Dae Kim Haig Sutherland as Dr. Bradley Paloma Kwiatkowski as Darby Stephens Aadila Dosani as Marta Kirpatrick Aaron Douglas as Jim Krepke Jay Brazeau as Dr. John Furesz Karyn Mott as Lisa Krepke Lexa Doig as Marlys Edwardh Matt Craven as Justice Horace Krever Paul McGillion as J.C.W. Weber Laura Bertram as Kelly Girard Sarah Smyth as Jenny Gould Richard Newman as Cherniak Gillian Barber as Dr. Hannah Strawczynski Farryn VanHumbeck as Teen Jessica Hartley Peter Flemming as Dr. Inwood Nils Hognestad as Professor Liam Fazackerley as Chad