Jill Myles

Jillian Anne "Jill" Myles (nee Ross) is the mother of Sienna Myles in The Quest for Beasts. She first appeared in the episode Training Day, which aired on September 17, 2002 and in which she is voiced by Peri Gilpin.

Biography
Jill's early life is unknown; she was born around the 1950s or 60s to a family of Scottish and Irish descent. Her parents died when she was in her teens. As a young adult, she met her future husband, John, a black man, and they later married. Shortly after, Jill fell pregnant and gave to their two biracial daughters, Alison and Sienna, the latter of whom is a student at Red River Boarding School.