Tiergan is a telepath and Sophie's Mentor. He does not like being called Sir Tiergan and prefers just Tiergan. Tiergan adopted Prentice's son Wylie after Prentice was sent to Exile and Wylie's mother faded. He doesn't like the Vacker family, but does help when Alden's mind is broken.
Tiergan has olive skin and light blond hair.
"You're very kind. But we both know I can never match you." - Exile