Conversation so far:
What can you tell me about Jack's characters?
Benny's comic persona changed over the course of his career.
At some point he developed a miserly persona.
what other Persona did he have?
This stage character was everything that Jack Benny was not: cheap, petty, vain and self-congratulatory.
Did he like the characters that he played?
Benny said: "I don't care who gets the laughs on my show, as long as the show is funny..
What show did he do?
CANNOTANSWER.

Question: Who did he work with?
Self-contained rewrite: Who did Jack Benny work with?