Filmes dirigidos
Stargate: Linha do Tempo
Writer
Stargate: Linha do Tempo
Producer
Stargate: A Arca da Verdade
Producer
Highlander: Counterfeit
Writer
Stargate - Herdeiros dos Deuses
Executive Producer
Stargate - Herdeiros dos Deuses
Writer
不都合な記憶
Story
不都合な記憶
Screenplay
Séries dirigidas
Forever Knight
Writer
The Odyssey
Writer
Poltergeist: The Legacy
Writer
Stargate Atlantis
Writer
Stargate Atlantis
Executive Producer
Stargate SG-1
Writer
Stargate SG-1
Producer
Stargate Universe
Executive Producer