Question: What American actress portrays Barbara "Barb" Dutton Henrickson is a character on HBO's "Big Love"?
Sentence (from "List of Big Love episodes"): The series revolves around Bill Henrickson (Bill Paxton), a polygamist living in Sandy, Utah with his three wives, Barb (Jeanne Tripplehorn), Nicki (Chloë Sevigny) and Margene (Ginnifer Goodwin) and their children.
Relevant evidence: No