Josh Radnor Ted Mosby Actor Jason Segel Marshall Erikson Actor Alyson Hannigan Lily Aldrin Actor Neil Patrick Harris Barney Stinson, Barney Stinson Actor, Guest Star Cobie Smulders Robin Sherbatsky Actor Bob Saget Narrator Bill Fagerbakke Marvin Ericksen Sr. Guest Star Suzie Plakson Judy Ericksen Guest Star Paul Schackman Dr. Mitchell Friedman Guest Star Artemis Pebdani Anna Guest Star Alexis Denisof Sandy RIvers Guest Star Matt Dwyer Syd Guest Star Jay Brian Winnick Ronald Guest Star Americus Abesamis Chaz Guest Star Bill Suplee Marty Guest Star Carter Bays Executive Producer Craig Thomas Executive Producer Jennifer Hendriks Writer Pamela Fryman Director