Betty drudges in the kitchen alone until her friends (including Bimbo and Koko) hold a surprise birthday party for her… which gets rowdy.
| Actor | Role |
|---|---|
 Mae QuestelBetty Boop / Aloysius (voice) (uncredited) | Betty Boop / Aloysius (voice) (uncredited) |
| WWilliam PennellHippo (voice) (uncredited) | Hippo (voice) (uncredited) |
 Billy MurrayBimbo (voice) (uncredited) | Bimbo (voice) (uncredited) |