An incredible being made of pure energy imperils the staff of a research lab and hides a deadly secret.
| Name | Type | Role | |
|---|---|---|---|
| Joseph Stefano | Writer | ||
| Joseph Stefano | Producer | Producer | |
| Leon Chooluck | Producer | Associate Producer | |
| Ted de Corsia | Guest Star | New Sentry | |
| Kent Smith | Guest Star | Dr. Bloch | |
| Gene Darfler | Guest Star | Warren Edgar Morley | |
| BarBara Luna | Guest Star | Gaby Christian | |
| Tom Palmer | Guest Star | Coroner | |
| Michael Forest | Guest Star | Prof. Stuart Peters | |
| Ed Asner | Guest Star | Detective Sgt. Thomas Siroleo | |
| Joan Camden | Guest Star | Prof. Stephanie Linden | |
| Scott Marlowe | Guest Star | Jory Peters | |
| Leslie Stevens | Executive Producer | Executive Producer | |
| Gerd Oswald | Director |