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 Lyndsy Fonseca Daughter Guest Star David Henrie Son Guest Star Saba Homayoon Yasmin Guest Star Marshall Manesh Ranjit Guest Star Joe Nieves Carl Guest Star Jack Shearer Cab Driver Guest Star Carter Bays Executive Producer, Writer Craig Thomas Executive Producer, Writer Pamela Fryman Director