American actor who played Wyatt Miller, Deanna Troi's intended husband, in the Next Generation episode Haven and later the Vaadwaur leader Gaul in the Voyager episode Dragon's Teeth.
Robert Knepper is an American actor who made an early screen appearance in the first-season Next Generation episode Haven. He plays Wyatt Miller, a young doctor bonded to Deanna Troi since childhood under Betazoid custom, who has dreamed for years of a woman he has never met.
Wyatt eventually finds that woman aboard a Tarellian plague ship and leaves with its people to search for a cure, releasing Troi from the arrangement.
Knepper returned to Star Trek in 1999 as Gaul, the Vaadwaur commander revived from stasis in the Voyager episode Dragon's Teeth. He is best known outside the franchise as Theodore Bagwell, called T-Bag, in Prison Break.