Greg Anderson (born 5 April 1961) is a Canadian actor who lives in Woodstock, New Brunswick, with his wife and son. He was born in Chatham Head, New Brunswick. Although an established stage actor, he is best known for his roles on television shows such as Stargate SG-1, Tru Calling, and The X-Files.
In 2006, he played Günter Guillaume in the Canadian premiere of Michael Frayn's play Democracy. A very reclusive person. Is said to have disappeared from the business.