Taiidan Emperor (Homeworld)
Terrance McQuewick (Entourage)
Top Dollar (The Crow)
Trypticon(transformers)
Tyber Zann (Star Wars: Empire at War: Forces of Corruption)
Valter (Fire Emblem: The Sacred Stones)
Vermouth (Detective Conan)
V.V. Argost (The Secret Saturdays)
Wes Mantooth (Anchorman: The Legend of Ron Burgundy)
White Goodman (Dodgeball)
Wilfre (Drawn to Life)
William Birkin (Resident Evil)
Xeno (Vandal hearts)
Xykon (Order of the Stick)
Yeti (SkiFree)
Yokoya (Liar Game)
Yzma (The Emperor's New Groove)
Zarkhator (Spore Hero)
Zera (Grandia 2)
Zeus (God of War)
Hope I didn't miss any.