Simplify the following text for a Grade 7 native English-speaking person.
Original: In 2006 , Chase was given the role of Rhonda Volmer in the HBO drama series Big Love which centers on a polygamist family and its patriarch , Bill Henrickson , played by Bill Paxton .
Simplified: In 2007 , Chase was in the HBO drama series Big Love . The series is about an FLDS polygamist , played by Bill Paxton , and his relationship with his 3 wives .