The Poor Alex opened in Toronto's Annex neighbourhood in the 1960s in a property owned by Ed Mirvish and took its name as a parody of the Mirvish-owned Royal Alexandra Theatre.
A small theatre venue, it hosted a comedy and off-Broadway-style productions and was the original home of the "Jest Society", which later became famous as the Royal Canadian Air Farce.
The Poor Alex Theatre began the Cabaret, welcoming nightly or weekend performances.
The location at Brunswick and Bloor was sold in August 2005, and the Poor Alex Theatre moved to 772A Dundas St. W. one block west of Bathurst St.
The new venue space with 200 seating capacity was designed for multi-tasking any type of event and rigged with lighting and audio capabilities for a professionally-staged performance.