A woman refuses to let her romances last longer than one month.
| Actor | Role |
|---|---|
 Sandy DennisSara Deever | Sara Deever |
 Anthony NewleyCharlie Blake | Charlie Blake |
 Theodore BikelAlonzo | Alonzo |
 Burr DeBenningClem Batchman | Clem Batchman |
 Sandy BaronRichard | Richard |
| MMarj DusayCarol | Carol |
 Martin WestGordon | Gordon |
 Virginia VincentMrs. Schumacher | Mrs. Schumacher |
| KKing MoodyDigby | Digby |
| RRobert GibbonsSam Naylor | Sam Naylor |
 Robert CleavesHarrison | Harrison |
 Francis De SalesArmstrong | Armstrong |
| MMonty MargettsDriving Test Proctor | Driving Test Proctor |
| GGeorge WintersTelegraph Boy | Telegraph Boy |
| PPaul KingMan in DMV Office (uncredited) | Man in DMV Office (uncredited) |
| NNorma Jean KronGirl Walking in Brooklyn (uncredited) | Girl Walking in Brooklyn (uncredited) |
 Mike LallyDMV Clerk (uncredited) | DMV Clerk (uncredited) |
| PPacky McFarlandMinor Role (uncredited) | Minor Role (uncredited) |