List of Shortland Street characters (1992)
Guy Warner was the guidance councilor brother of Chris Warner (Michael Galvin). Craig Parker played him in a guest stint in 1992 before returning as a regular from 1993 to 1996. He appeared again in 2007.
List of Shortland Street characters (2006)
Dr. Callum McKay first appeared in October 2006 and it was said he was to: "give the hospital a good shake up." In 2012 the character was axed, something which Peter Mochrie did not mind as he felt he was "coasting" throughout his final year and was missing his onscreen family. Despite hitting it off with Libby Jeffries (Fleur Saville), Callum was revealed as the husband of Justine Jones (Laurie Foell). The couple briefly separated when Callum discovered Justine (Lucy Wigmore) had an affair with Chris Warner (Michael Galvin). In 2008 Callum had an affair with Martha Riley (Jacque Drew) though he and Justine remained together. Callum became CEO of the hospital despite his dodgey business dealings with Ethan Pierce (Owen Black). His marriage to Justine fell apart when she faked her death and he had a short lived affair with Brooke Freeman (Beth Allen). He went on to date Rachel McKenna (Angela Bloomfield) for several months before he lost his job after being manipulated by Shane Tucker (Jason Hood). In mid 2011 he scandalously began an affair with son Hunter's (Lee Donoghue) ex-girlfriend Jill (Natalie Medlock) before he got his job back. Callum was devastated when Hunter's drug addiction was revealed and Jill died as a result of a botched pharmacy break-in. In 2012 Callum resigned as CEO and took up a role heading the new drug rehabilitation programme so as to help Hunter. Following Hunters departure, Callum left in May left to reconnect with his children.