Da'kyll in full growth
Commander Da'kyll was a Tlak'kahn commander in charge of capturing Draga, whom the Tlak'kahn believed was an Ancient. (INF: "The Decision")
Da'kyll attacked Stargate Command in an attempt to take the creature that he thought was an Ancient. (INF: "The Decision")
Da'kyll's voice actor Mark Acheson also played Vishnoor in an episode of Stargate SG-1 called "Prisoners".