Guest Stars on The Simpsons - Season One (1989-90)

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Ron Taylor (Bleeding Gums Murphy)
The jazz legend who is also Lisa's mentor.

Albert Brooks (Cowboy Bob)
The manager of Cowboy Bob's RV Roundup.

Albert Brooks (Jacques)
Marge has an affair with this bowling instructor.

Sam McMurray (Gulliver Dark)
Sings at the Offramp Inn show.

June Foray (Babysitter service woman)
The receptionist for the Rubber Baby Buggy Bumpers Babysitter Service.

Penny Marshall (Ms. Botz)
Strict disciplinarian who turns out to be a criminal.
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