 | Alan Freed and his Rock 'n Roll Band | ... | Themselves |
 | Fran Manfred | ... | Arabella |

| Tuesday Weld | ... | Dori Graham |
 | Teddy Randazzo | ... | Tommy Rogers |
 | Jacqueline Kerr | ... | Gloria Barker |
 | Ivy Schulman | ... | Baby |
 | The Moonglows | ... | Themselves |
 | Chuck Berry | ... | Himself |
 | The Flamingos | ... | Themselves |
 | Jimmy Cavallo and the House Rockers | ... | Themselves |
 | The Johnny Burnette Trio | ... | Themselves |
 | La Vern Baker | ... | Herself |
 | Cirino and the Bowties | ... | Themselves |
 | Frankie Lymon and the Teenagers | ... | Themselves |
 | The Coney Island Kids | ... | Themselves |
 | Jack Collins | ... | Dori's Father |
 | Carol Moss | ... | Louise, Dori's Mother |
 | Eleanor Swayne | ... | Miss Silky |
 | Lester Mack | ... | Mr. Bimble |
 | Bert Conway | ... | Mr. Barker |
 | David Winters | ... | Melville |
| rest of cast listed alphabetically: |
 | Paul Burlison | ... | Himself - as The Johnny Burnette Trio |
 | Frank Virtue and the Virtues | ... | Themselves (scenes deleted) |
 | Alan Freed | ... | Himself (as Alan Freed and his Rock 'n Roll Band) |
 | Prentiss Barnes | ... | Member, The Moonglows (uncredited) |
 | Dorsey Burnette | ... | Himself (uncredited) |
 | Johnny Burnette | ... | Himself, Lead Singer of The Johnny Burnette Trio (uncredited) |
 | Jake Carey | ... | Member, The Flamingos (uncredited) |
 | Zeke Carey | ... | Member, The Flamingos (uncredited) |
 | Johnny Carter | ... | Lead Singer of The Flamingos (uncredited) |
 | Jimmy Cavallo | ... | Himself , Lead Singer of Jimmy Cavallo and The House Rockers (uncredited) |
 | Cirino Colacrai | ... | Himself , Lead Singer of Cirino and the Bowties (uncredited) |

| Connie Francis | ... | Dori (singing voice) (uncredited) |
 | Harvey Fuqua | ... | Lead Singer of The Moonglows (uncredited) |
 | Sherman Garnes | ... | Bass Singer of Frankie Lyman and The Teenagers (uncredited) |
 | John Granada | ... | Member, Cirino and the Bowties (uncredited) |
 | Alexander Graves | ... | Member, The Moonglows (uncredited) |

| Valerie Harper | ... | Dancer at Prom (uncredited) |
 | Billy Johnson | ... | Member, The Moonglows (uncredited) |
 | Bobby Lester | ... | Member, The Moonglows (uncredited) |
 | Frankie Lymon | ... | Himself, lead singer of Frankie Lyman and The Teenagers (uncredited) |
 | Jimmy Merchant | ... | Member / Frankie Lyman and the Teenagers (uncredited) |
 | Joe Negroni | ... | Member / Frankie Lyman and the Teenagers (uncredited) |
 | Nate Nelson | ... | Member, The Flamingos (uncredited) |
 | Michael Peterson | ... | Dancer at Prom (uncredited) |
 | Jimmy Piro | ... | Member, Cirino and the Bowties (uncredited) |
 | Tommy Romano | ... | Himself (uncredited) |
 | Herman Santiago | ... | Member / Frankie Lyman and the Teenagers (uncredited) |
 | Vince Sepaldo | ... | Member, Cirino and the Bowties (uncredited) |
 | Garrison True | ... | Dori's Prom Date (uncredited) |