Erich Boehm
В роли: Narrator (голос)

Michael Julius
В роли: Self / Vice President Research of Sunnybrook Health Sciences Centre

Barry McLellan
В роли: Self / Chief Executive Officer of Sunnybrook Health Sciences Centre

Louise Moffat
В роли: Self / Malcolm's Wife

Malcolm Moffat
В роли: Self / Executive Vice President of Sunnybrook Health Sciences Centre (как Ray Macklehone)