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 Bill Fagerbakke Marvin Eriksen Sr. Guest Star Kaela Elmido Girl Guest Star Andrew Astor Addison Guest Star Robert Wisdom McCracken Guest Star Charlie Stewart Kenny Guest Star Justin Lawrence Ryan Guest Star Brian Patrick Collins Teen Wolf Guest Star Desiree Brajevich Rave Girl Guest Star Carter Bays Executive Producer Craig Thomas Executive Producer Joe Kelly Writer Pamela Fryman Director