This is The 1st Broadcast of "THE MIGHTY MOUSE PLAYHOUSE" on Saturday Morning December 10, 1955 on CBS-TV at 11:00-11:30 AM Eastern and The 1st Set of Cartoon Adventures for Mighty Mouse, Pearl Pureheart, Power Puss/Oil Can Harry, Gandy Goose & Sourpuss Cat and Dinky Duck.
| Name | Type | Role | |
|---|---|---|---|
| Roy Halee | Guest Star | Mighty Mouse (singing voice) | |
| Carol Lawrence | Guest Star | Pearl Pureheart (talking/singing voice) | |
| Arthur Kay | Guest Star | Gandy Goose & Sourpuss Cat (talking/singing voice) | |
| Jimmy Weldon | Guest Star | Dinky Duck (voice) | |
| Tom Morrison | Guest Star | Mighty Mouse (talking voice) |