| PROFESSOR HAROLD HILL---MORE THAN LIKELY THE BEST CON MAN WHO EVER LIVED |
| Superbly played by |
| Robert Preston |
| MARCELLUS WASHBURN---HAROLD HILLS ONLY REAL FRIEND |
| Played by |
| Buddy Hackett (no vulgarity heh heh heh) |
| MAYOR SHINN---THE POMPOUS CITY MAYOR |
| Played By |
| Paul Ford |
| MARIAN PAROO---THE TOWN LIBRARIAN AND SWEETHEART OF PROFESSOR HILL |
| Played by |
| Shirley Jones |
| WINTHROP PAROO---MARIAN'S LITTLE BROTHER WHO STUTTERS AND DOES BELIEVE |
| Played by |
| Ron ( OPIE ) Howard |
| MRS. PAROO---MARIAN AND WINTHROP'S MOTHER |
| Played by |
| Pert Kelton |
| EULALIE SHINN---THE MAYOR'S WIFE |
| Played by |
| Hermione Gingold |
| AMARYLLIS---PIANO STUDENT AND SECRET SWEETHEART OF WINTHROP |
| Played by |
| Monique Vermont |
| TOMMY DJILAS---THE TOWN TROUBLE MAKER AND SWEETHEART OF ZANEETA |
| Played by |
| Timmy Everett |
| ZANEETA SHINN---MAYOR SHINN'S DAUGHTER AND SWEETHEART OF TOMMY |
| Played by |
| Susan Luckey |
| CHARLIE COWELL--- TROUBLE MAKING RIVAL SALESMAN |
| Played by |
| Harry Hickox |
| THE BARBER SHOP QUARTET---SCHOOL BOARD |
| Played by |
| "The Buffalo Bills"-Olin Britt,Ewart Dunlop,Oliver Hix and Jacey Squires |
| THE PICKALITTLE LADIES---GOSSIP-GOSSIP-GOSSIP-FRIENDS OF EULALIE |