Watch: Chris Pratt Defends Wife Katherine Schwarzenegger's Cousin Robert F. Kennedy Jr.Chris Pratt isn't one for talking politics in public. Unlike basically everyone else on his wife Katherine Schwarzenegger's side of the family. While Katherine's movie star dad Arnold Schwarzenegger was the governor of California for seven years, her mom Maria Shriver is a member of one of the most storied political dynasties...well, ever.