Ted Kramer is a career man for whom his work comes before his family. His wife Joanna cannot take this anymore, so she decides to leave him. Ted is now faced with the tasks of housekeeping and taking care of himself and their young son Billy.
| Actor | Role |
|---|---|
 Dustin HoffmanTed Kramer | Ted Kramer |
 Meryl StreepJoanna Kramer | Joanna Kramer |
 Jane AlexanderMargaret Phelps | Margaret Phelps |
 Justin HenryBilly Kramer | Billy Kramer |
 Howard DuffJohn Shaunessy | John Shaunessy |
 George CoeJim O'Connor | Jim O'Connor |
 JoBeth WilliamsPhyllis Bernard | Phyllis Bernard |
 Bill MoorGressen | Gressen |
 Howland ChamberlainJudge Atkins | Judge Atkins |
| JJack RamageSpencer | Spencer |
| JJess OsunaAckerman | Ackerman |
 Nicholas HormannInterviewer | Interviewer |
| EEllen ParkerTeacher | Teacher |
| SShelby BrammerTed's Secretary | Ted's Secretary |
| CCarol NadellMrs. Kline | Mrs. Kline |
| DDonald GantrySurgeon | Surgeon |
 Joe SenecaPartygoer | Partygoer |
| DDavid GoldenGrocer | Grocer |
| SSean AlbertsonBoy in Hospital (uncredited) | Boy in Hospital (uncredited) |
| IIris KleinPartygoer (as Iris Alhanti) | Partygoer (as Iris Alhanti) |
| PPeter LowndsNorman | Norman |
| JJudith CalderReceptionist | Receptionist |
| KKathleen KellerWaitress | Waitress |
| IIngeborg SørensenWoman at Christmas Party | Woman at Christmas Party |