john lithgow how i met your mother 'How I Met Your Mother': John Lithgow is Barney's dad

Barney’s (Neil Patrick Harris) recent decision to meet his father is going to have a swift pay-off. John Lithgow (“Dexter”) will join “How I Met Your Mother” for a February episode, as our favorite player’s long lost pops.

Co-star Cobie Smulders broke the news in an interview on the TV Guide Network, saying “It’s really exciting and different for our show. He’s such a pioneer.”

The character actor has had quite a run, and after his brilliantly psychotic turn on “Dexter,” it will be nice to see him tackle something with a little more whimsy.

And a dad isn’t the only new person in Barney’s life. TVLine reports former “General Hospital” actress Nazanin Boniadi gets a multi-episode arc later this season as his new love interest — not the best news for those of you still hoping for a Barney/Robin reunion this season.

Posted by:Mikey O'Connell