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 David Henrie Son Guest Star Lyndsy Fonseca Daughter Guest Star Miki Mia Chinese Waitress Guest Star Keri Safran Katie Guest Star Brian Petrucelli Moving Man 1 Guest Star Martin Starr Kevin Guest Star Maya Parish Erin Guest Star Keisuke Hoashi Doctor Guest Star Carter Bays Executive Producer Craig Thomas Executive Producer Pamela Fryman Director Gloria Calderon Kellett Writer