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 Eric Keenleyside as Dr. Martin Davey Paul Piaskowski as Dr. Christos Tsoukas John Emmet Tracy as Sam Millhouse Robert Moloney as Dr. Derek Naylor Kimberly Sustad as Caitlyn Hartley Eric Breker as Dr. John Derrick Trinity Likins as Child Emma Landry Alistair Abell as Ed Wilmont Garry Chalk as Arvid Knudson Jay Brazeau as Dr. John Furesz William MacDonald as Frank Schnabel Gillian Barber as Dr. Hannah Strawczynski Laura Bertram as Kelly Girard Fred Henderson as Male News Anchor Rohan Campbell as Eric Doncaster Fiona Hogan as Dr. Rosalyn Herst Fletcher Donovan as Man 1 Avery Konrad as Kendra Bowen Byron Noble as ER Doctor (1967) Gerard Plunkett as Dr. Baldwin Troy Rudolph as Group Leader Ryan Grantham as Andy Girard Natalie Moon as Emergency Ward Nurse (1967) Angus Stuart as Funeral Priest Kris McRonney as Man 2 Zoe Cooper as Amy