John Lithgow

John Arthur Lithgow is an American actor, musician, poet, author, and singer. He is the recipient of numerous accolades and has been nominated for two Academy Awards and four Grammy Awards. He has received a star on the Hollywood Walk of Fame and has been inducted into the American Theater Hall of Fame.

HOW I MET YOUR MOTHERS6, E21

Hopeless

Barney is determined to show his dad that it was a mistake to have given up his former life of wild partying, drinking and sleeping around.
HOW I MET YOUR MOTHERS6, E19

Legendaddy

Barney's dad Jerome shows up at his home. After learning his father is a driving instructor in the suburbs, Barney decides he's not the cool dad he'd hoped for and wants nothing more to do with him. The gang convinces Barney to give Jerome another chance and take up his offer to have dinner with his wife and son. When he does, Barney finds that he is more upset by Jerome's traditional family life than he expected.
HOW I MET YOUR MOTHERS9, E10

Episode 10

This season takes place over the course of Barney and Robin’s wedding weekend, when the lives of the gang change dramatically
HOW I MET YOUR MOTHERS9, E22

Episode 22

This season takes place over the course of Barney and Robin’s wedding weekend, when the lives of the gang change dramatically

John Lithgow on Apple