Callár was one of the first to join the Roundtable, quickly seeing the potential in the young pack. Not quite experienced, but eager, he became part of the Gale Strike hunters, sometimes working double to compensate for the lack of other members.
After a gruesome hunt, he suffered from a terrible curse which flayed his skin almost to the bone. Luckily by then, the Roundtable was joined by Baron, who quickly remembered the remedy.