Josh Radnor Ted Mosby Actor Jason Segel Marshall Erikson Actor Cobie Smulders Robin Sherbatsky Actor Neil Patrick Harris Barney Stinson Actor Alyson Hannigan Lily Aldrin Actor Cristin Milioti Tracy McConnell Actor Bob Saget Narrator Chris Elliott Mickey Aldrin Guest Star Marshall Manesh Ranjit Guest Star Suzie Plakson Judy Ericksen Guest Star William Zabka Billy Zabka Guest Star Robert Belushi Linus Guest Star Tracey Ullman Genevieve Scherbatsky Guest Star Laura Bell Bundy Becky Guest Star Carter Bays Executive Producer, Writer Craig Thomas Executive Producer, Writer Pamela Fryman Executive Producer, Director Stephen Lloyd Executive Producer Chris Harris Executive Producer Chuck Tatham Executive Producer Jamie Rhonheimer Executive Producer Kourtney Kang Executive Producer