- Mary Tyler Moore as Mary Richards
- Michael Learned as Fran Grant
- Gavin MacLeod as Murray Slaughter
- Georgia Engel as Georgette Franklin
- Ted Knight as Ted Baxter
Guest Stars
- Rhoda Morgenstern (Valerie Harper)
- Carol Brady (Florence Henderson)
- Alice Hyatt (Linda Lavin)
- Maude Findlay (Bea Arthur)
- Judge Harry Stone (Harry Anderson)
- Dr. Johnny Fever (Howard Hesseman)
- Jennifer Marlowe (Noelle North)
- Lou Grant (Ed Asner)
- Chuckles the Clown (Bill Daily)
- Georgette's Mother (Cloris Leachman)