Thunder (Fable)

Thunder is a character from Fable. He is an Arena champion, and brother of Whisper. And if you kill Whisper in the Arena, he is enemy with the hero of oakvale, but still dislikes him if he spares her. If you go on the Lady Grey questline, you can fight Thunder and kill him. If you don't he'll help fight the war against Jack of Blades. Later in Fable: The Lost Chapters you can choose between collecting his soul for one of the three you need, but if he's already killed you can find another in his place.