Doug LePard, acting chief of Vancouver Police, said: "As was the case in countless homes, I watched Glee regularly with my daughters, and I know there will be shock and sadness in many households with the news of his tragic death.
"Mr Monteith checked into the hotel in July 6 and was due to check out of the room (on Saturday).
"There were others with Mr Monteith in his room earlier ... but video and fob key entries show him returning to his room by himself in the early morning hours and we believe he was alone when he died."