Born in Tulsa, Oklahoma, Jeanne Tripplehorn entered the performing arts after early stints on local television and a rock-radio job, then refined her craft at the Juilliard School’s Drama Division (Group 19, 1986-1990). She first gained notice on stage, appearing Off-Broadway and on Broadway in productions such as Chekhov’s Three Sisters, before transitioning to film with a supporting turn as a po…