Lisa Ray
In August 2010, Shaftesbury Films announced that production on season four had begun and was scheduled to continue through November 2010. Guest stars in season four include Victor Garber, Lisa Faulkner, Simon Williams, Peter Keleghan, Craig Olejnik, and Lisa Ray. On October 15, 2010, then Canadian Prime Minister Stephen Harper and his daughter visited the set of "Murdoch Mysteries". As part of the visit to the set Stephen Harper filmed a cameo appearance.