David Callan David Callan David Callan is an actor and standup comedian based in Sydney, Australia. He is a former employee of ASIO; his comedy material is partly based on his experiences as a spy. In the 2011 sitcom "At Home with Julia", he played the recurring role of Agent Smith, one of the Australian Federal Police agents on the Prime Minister's security detail. In 2012, he appeared in two episodes of the TV series "Rake". He is sometimes confused with Dave Callan, another Australian standup comedian with an almost identical name. Callan has a wife and two children and lives in
K. Callan K. Callan K. Callan (born Katherine Elizabeth Borman; 1936) is an American author and actress known for playing Clark Kent's mother Martha in the ABC television series "". Born in Dallas, Texas she first appeared on television in an episode of "Route 66" that happened to be shooting in Dallas. She resumed her on-camera career in 1970, having guest-starring roles on "One Day at a Time", "St. Elsewhere", "Carnivàle", "JAG", "Coach" and "King of the Hill". She played a key role in the Emmy Award-winning episode "Cousin Liz" of "All in the Family" and portrayed the mother of April Stevens