Guest Stars Kris McQuade as Barbara McCallum Noela Foxcroft as Mrs. Marsh Katie Robertson as Dr. Grace Howlett Kim Knuckey as Sergeant Greg Hardwick Debra Lawrance as Sandra Tracy Mann as Karina Robyn Arthur as Jane Nic English as Kit Norman Coburn as Gareth Ivano Del Pio as 50-Something Man Miriam Cooper as 50-Something Woman