Samantha Smith (Mary Winchester) is scheduled to attend Creation Entertainment's Salute to Supernatural, to be held Friday-Sunday, August 27-29, 2010 at Sheraton Vancouver Wall Centre, 1088 Burrard St., Vancouver, British Columbia, Canada.
As was already announced, Jensen Ackles, Jared Padalecki and Misha Collins are also scheduled to attend the event.
Source: Creation Entertainment.
Disclaimer: WinchesterBros.com and MediaBlvd.com are in no way connected to the convention.