The younger son of a working-class Jewish family in Montreal, Duddy Kravitz yearns to make a name for himself in society. This film chronicles his short and dubious rise to power, as well as his changing relationships with family and friends. Along the way the film explores the themes of anti-semitism and the responsibilities which come with adulthood.
| Actor | Role |
|---|---|
 Richard DreyfussDuddy | Duddy |
 Henry RamerDingleman | Dingleman |
| AAlan RosenthalLennie | Lennie |
| SSusan FriedmanLinda | Linda |
 Joseph WisemanUncle Benjy | Uncle Benjy |
 Micheline LanctôtYvette | Yvette |
 Jack WardenMax | Max |
 Randy QuaidVirgil | Virgil |
 Barry BaldaroPaddy | Paddy |
| SSonny OppenheimCohen | Cohen |
| LLionel SchwartzArnie | Arnie |
| BBarry PascalBernie Farber | Bernie Farber |
 Denholm ElliottFriar | Friar |
 Joe SilverFarber | Farber |
 Zvee ScoolerGrandfather | Grandfather |
| RRobert GoodierCalder | Calder |
 Allan KolmanIrwin | Irwin |
| JJacques DuretteBodyguard | Bodyguard |
| JJohnatan RobinsonRabbi | Rabbi |
| EEdward ResminiBernie Altman | Bernie Altman |
| VVincent ColeMoe | Moe |
| HHenry GamerLawyer | Lawyer |
| LLou LevittRubin | Rubin |
| MMickey EichenCuckoo | Cuckoo |
 Robert DesrochesLaplante | Laplante |
| JJudith GaultTarty Woman | Tarty Woman |
| NNorman TavissGrandfather Farber | Grandfather Farber |
 Neville ChamberlainSelf (archive footage) (uncredited) | Self (archive footage) (uncredited) |
 Adolf HitlerSelf (archive footage) (uncredited) | Self (archive footage) (uncredited) |