Gwaine's Sister

"Well, my sister's an evil old toad, so I'd be eternally grateful."

- Gwaine to Percival and Leon

Gwaine's Sister is the sister of Sir Gwaine. Not much is known about her except that she and Gwaine don't get along and he refers to her as an old toad which also implies that she could be the oldest of the two.

Appearances

 * Series 4
 * A Herald of the New Age