Eirak
From Tardis Wiki, the free Doctor Who reference
Eirak was the leader of the Vanir on Terminus. When Valgard challenged his leadership, Eirak agreed to step down if Valgard would bring the Doctor back from the Forbidden Zone, which he eventually succeeded in doing. He and the other Vanir were freed when Nyssa offered to synthesize Hydromel for them. (DW: Terminus)
