Conversation so far:
What can you tell me about Jack Benny's characters?
Jack Benny played himself. Benny is a comic, vain, penny-pinching miser, insisting on remaining 39 years old on stage despite his actual age, and often playing the violin badly.
what other Personas did Jack Benny have besides himself?
He played one role throughout his radio and television careers, a caricature of himself.
Did Jack Benny like the characters that he played?
What show did Jack Benny do?
The Jack Benny Program, starring Jack Benny, is a radio-TV comedy series.
Who did Jack Benny work with on The Jack Benny Program?
Mary Livingstone was an American radio comedian and actress. She was the wife and radio partner of comedian Jack Benny.

Question: Was she his wife on the show as well?
Self-contained rewrite: Was Mary Livingstone cast as Jack Benny's wife on the Jack Benny show as well?