Bello, 45, who joined the Kiefer Sutherland series at the end of Season 1, left as the result of a mutual decision between Bello and the show's producers. Bello will appear as a series regular in the show's upcoming second season, which just wrapped shooting and will premiere next month.
It is unknown how Bello's character, a mother named Lucy, will be written out of the show. Before joining Touch, Bello starred on the short-lived U.S. adaptation of Prime Suspect and is also known for her roles in ER and Coyote Ugly.
Touch's new season premieres on Friday, Feb. 8 at 8/7c.