Carter Bays Creator, Executive Producer, Writer Craig Thomas Creator, Executive Producer, Writer Josh Radnor Ted Mosby Actor Jason Segel Marshall Erikson Actor Neil Patrick Harris Barney Stinson Actor Alyson Hannigan Lily Aldrin Actor Cobie Smulders Robin Sherbatsky Actor Bob Saget Narrator Alexis Denisof Sandy Rivers Guest Star Ellen D. Williams Patrice Guest Star Seth Green Daryl Lacorte Guest Star Peter Gallagher Professor Vinick Guest Star Misty Monroe Waitress Guest Star Pamela Fryman Executive Producer, Director Chris Harris Executive Producer Kourtney Kang Executive Producer Stephen Lloyd Executive Producer Chuck Tatham Executive Producer Dan Gregor Writer Doug Mand Writer