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 David Henrie Son Guest Star Lyndsy Fonseca Daughter Guest Star Sarah Chalke Stella Zinman Guest Star Darcy Rose Byrnes Lucy Zinman Guest Star Jason Jones Tony Grafanello Guest Star Aaron Hendry Juice Bar Guy Guest Star Danneel Ackles Nora Zinman Guest Star Derek Shizuto Host Guest Star Annie Abrams Desk Clerk Guest Star Carter Bays Executive Producer Craig Thomas Executive Producer Chris Harris Writer Pamela Fryman Director