Ted Kramer
Joanna Kramer
Margaret Phelps
Billy Kramer
John Shaunessy
Jim O'Connor
Phyllis Bernard (as Jobeth Williams)
Gressen
Judge Atkins
Spencer
Ackerman
Interviewer
Teacher
Ted's Secretary
Mrs. Kline
Surgeon
Receptionist
Norman
Waitress
Woman at Christmas Party (as Ingeborg Sorensen)
Partygoer (as Iris Alhanti)
Partygoer
Court Clerk
Grocer
Petie Phelps
Kim Phelps (as Melissa Morell)
Street Musician
Boy in Hospital (uncredited)
Schoolmate; Boy in Park (uncredited)
Restaurant Patron (uncredited)
Museum Attendee (uncredited)
Waiter (uncredited)
Blonde Little Girl at park (uncredited)