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 Charlene Amoia Wendy Guest Star Charlene Lovings Assistant Guest Star Jim Nantz Jim Nantz Guest Star Nick Swisher Nick Swisher Guest Star Larry Poindexter Joe Donovan Guest Star Hong Chau Cook Pu Guest Star George Finn Jamie Adamic Guest Star Ryan Daniel Dobson Danny Guest Star Jessica Borden Joanna Guest Star Brooke Newton Christy Guest Star Carter Bays Executive Producer Craig Thomas Executive Producer Greg Gerard Writer Matthew Zinman Writer Pamela Fryman Director