Stuart Fails to Save the Universe Adds 3 to Cast - Including 2 Big Bang Alums

The cast of Stuart Fails to Save the Universe is expanding with the addition of three recurring guest stars. Ryan Cartwright (Mom), Josh Brener (Silicon Valley) and Tommy Walker (The Kominsky Method) have boarded HBO Maxs Big Bang Theory spinoff. Per Deadline, Cartwright will be play Kyle, a daily patron of Stuarts comic book store; []