American Gladiators First Half Preliminary Round 1: Costantino vs. Adams/Mercer vs. Tillotson (1989–1997) Online
- Original Title :
- First Half Preliminary Round 1: Costantino vs. Adams/Mercer vs. Tillotson
- Genre :
- TV Episode / Action / Game Show / Sport
- Year :
- 1989–1997
- Directror :
- Bob Levy
- Cast :
- Mike Adamle,Larry Csonka,Michael M. Horton
- Type :
- TV Episode
- Time :
- 1h
- Rating :
- 7.6/10
| Episode credited cast: | |||
 | Mike Adamle | - | Himself - Host |
| Larry Csonka | - | Himself - Host |
| Michael M. Horton | - | Gemini |
| Marisa Pare | - | Lace |
 | Danny Lee Clark | - | Nitro |
| Tonya Knight | - | Gold |
| Jim Starr | - | Laser |
| Sha-Ri Pendleton | - | Blaze |
| Billy Smith | - | Thunder |
| Lori Fetrick | - | Ice |
| Galen Tomlinson | - | Turbo |
| Erika Andersch | - | Diamond |
| Larry Thompson | - | Himself - Referee |
| Rest of cast listed alphabetically: | |||
| John Adams | - | Contestant |
| Rico Constantino | - | Himself - Contestant |