The Greatest American Hero Just Another Three-Ring Circus (1981–1983) Online
- Original Title :
- Just Another Three-Ring Circus
- Genre :
- TV Episode / Adventure / Comedy / Sci-Fi
- Year :
- 1981–1983
- Directror :
- Chuck Bowman
- Cast :
- William Katt,Robert Culp,Connie Sellecca
- Writer :
- Stephen J. Cannell,Stephen J. Cannell
- Type :
- TV Episode
- Time :
- 49min
- Rating :
- 6.9/10
Bill is assigned to locate a missing circus clown. Ralph is recruited to infiltrate the circus as a human cannonball act.
| Episode cast overview, first billed only: | |||
 | William Katt | - | Ralph Hinkley |
 | Robert Culp | - | Bill Maxwell |
 | Connie Sellecca | - | Pam Davidson |
 | Faye Grant | - | Rhonda Blake |
 | Michael Paré | - | Tony Villicana |
 | Catherine Campbell | - | Erica |
 | William Bogert | - | Les Carlisle |
| Alex Rodine | - | Klaus Vorman |
 | Jesse D. Goins | - | Cyler Johnson |
 | Kai Wulff | - | Peter |
 | Terrence McNally | - | Keith (as Terrence Mc Nally) |
 | Richard Doyle | - | Biff Anderson |
| James MacKrell | - | Biff Anderson #2 (as Jim Mc Krell) |
 | David Winn | - | John |
 | Lisa Donaldson | - | Alicia |