Alice Tompkins - She was Jay's Southern girlfriend in the second season and if the show had lasted longer, they probably would've been married. She was divorced to a country singer and took care of their young daughter Penny.
Martin Sherman - Jay's son from a previous marriage. Basically, a young Jay, but with a slightly better future it seemed.
Duke Phillips - Jay's boss, a parody of Ted Turner. Like Mr. Burns, but half as mean. One of the funniest supporting characters, besides...
Franklin Sherman - Jay's adopted father. Filthy rich, and out of his little mind. Resembled George Bush slightly.
Eleanor Sherman - Jay's adopted mother. Straight-on parody of Katherine Hepburn. Embarrassed Jay to no end.
Margo Sherman - Jay's teenaged sister, a real daughter of Franklin and Eleanor. The most normal person on the show by far.
Doris Grossman - Like Lunchlady Doris on "The Simpsons", a parody of the late Doris Grau who played both characters. Jay's makeup lady.
Jeremy Hawke - Australian ladies' man and actor, Jay's friend even though Jay probably hated his movies. Straight-on parody of Paul Hogan and other action heroes.
Vlada Velimirovic - Owned the restaurant Jay always dined in. Korean version of "The Simpsons"' Apu.