Tricky Goaltending: Leafs and Wings
The only "easy" answer might be Terry Sawchuk. Harry Lumley and Hap Holmes also played at both ends of the rink. Though they are HHOFers, they are too often forgotten by recent generations.
The fourth answer is actually makes this a bit of a trick question. The great goal scorer Charlie Conacher also played net for both Toronto and Detroit. Back in his day there were no back up goalies, so skaters would have to take to the nets in the event of an injury or a goaltender penalty as goalies served their own penalties, too.