Who costarred in Some Like it Hot?

Here are the main cast members who co-starred with Marilyn Monroe in "Some Like it Hot":

* Tony Curtis as Jerry/Josephine

* Jack Lemmon as Daphne/Junior

* Joe E. Brown as Osgood Fielding III

While many other actors appear in the film, these three were the main leads and most prominent co-stars with Marilyn Monroe.