Valgard

Valgard was one of the Vanir on Terminus.

Biography
He challenged the leadership of Eirak, who agreed to step down if Valgard would bring the Fifth Doctor back from the Forbidden Zone, which he eventually did. He and the other Vanir were freed when Nyssa offered to synthesise hydromel for them. (TV: Terminus)

Behind the scenes
Nicholas Ball, Stewart Burt, Tom Chabdon, Paul Darrow, Michael Gothard, Del Henney, Bernard Hill, Patrick Mower, Patrick Stewart, Anthony Valentine and David Warner were considered for the role before Andrew Burt was cast.