Josh Radnor Ted Mosby Actor Jason Segel Marshall Erikson Actor Alyson Hannigan Lily Aldrin Actor Neil Patrick Harris Barney Stinson Actor Cobie Smulders Robin Sherbatsky Actor Bob Saget Narrator Taylor Hoover Jeannie Radford Guest Star Diana Gettinger Alison Moses Guest Star Ashli Ford Lauren Stein Guest Star Terryn Westbrook Staci Rawnsley Guest Star Evan Mann Zach Grecco Guest Star E.E. Bell Mystery Guest Guest Star Jason Lopez Hot guy Guest Star Rick Malambri Floppy Haired Guy Guest Star Carter Bays Executive Producer Craig Thomas Executive Producer Pamela Fryman Director Kourtney Kang Writer