Discover
Original Release
10/22/1978
Cast
| Name | Character |
|---|
| Shaun Cassidy | Joe Hardy |
| Parker Stevenson | Frank Hardy |
| Ed Gilbert | Fenton Hardy |
| Jack Kelly | Harry Hammond |
| Darleen Carr | Helena Martin |
| John Colicos | Col. L. Morbius |
| Lloyd Nolan | Professor Anton Hendricks |
| Duncan Gamble | Skip McTeague |
| Gino Conforti | Desk Clerk |
| Pamela Jean Bryant | Jeanette |
Directors
Edward M. Abroms, Don McDougall, Richard Benedict
Writers
Steven E. De Souza, Lee Sheldon
Cast
| Name | Character |
|---|
| Shaun Cassidy | Joe Hardy |
| Parker Stevenson | Frank Hardy |
| Ed Gilbert | Fenton Hardy |
| Jack Kelly | Harry Hammond |
| Darleen Carr | Helena Martin |
| John Colicos | Col. L. Morbius |
| Lloyd Nolan | Professor Anton Hendricks |
| Duncan Gamble | Skip McTeague |
| Gino Conforti | Desk Clerk |
| Pamela Jean Bryant | Jeanette |
| Peter Weiss | Vittorio |
| Tanya Lemani | Serena, Greek Dancer |
| Kopi Sotiropulos | Miklos |
| Raven Grey Eagle | Minor Role |
Producers
| Name | Role |
|---|
| Glen A. Larson | Executive Producer |
| Joyce Heft Brotman | Producer |
| Christopher Crowe | Producer |
| Ben Kadish | Producer |
| Andrew Mirisch | Producer |
| Michael Sloan | Producer |
| Arlene Sidaris | Producer |
