A major character might be leaving Big Love, but a fan favorite will be returning.

Sources confirm that Tina Majorino - beloved from roles in Veronica Mars and Napoleon Dynamite - will reprise her role as Heather Tuttle on the HBO drama. She'll appear on the second episode of the fourth season, as Sarah has an important question for her estranged pal.

Meanwhile, Matthew Humphries has landed the role Ron Reed, the new face of the religious right. As the head of an anti-gaming organization, he'll butt heads often with Bill.

Humphries has guest-starred on shows such as Burn Notice and Supernatural.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.