Lockwood has to track down a friend who was infected by a mysterious and highly contagious disease following a deep sea dive.
| Name | Type | Role | |
|---|---|---|---|
| Judy Burns | Writer | ||
| Howard Duff | Guest Star | ||
| Frederic Downs | Guest Star | Avery (as Fred Downs) | |
| Jack Ging | Guest Star | ||
| Frank Loverde | Guest Star | ||
| Robert Webber | Guest Star | ||
| Eric Server | Guest Star | ||
| Keith Andes | Guest Star | ||
| Ed Hall | Guest Star | ||
| Tom Scott | Guest Star | ||
| Ed Nelson | Guest Star | ||
| Christopher Stafford Nelson | Guest Star | ||
| Jimmy Hayes | Guest Star | ||
| Anne Francis | Guest Star | ||
| Jerry Jameson | Director |