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 Sarah Chalke Stella Sinman Guest Star Will Forte Randy Guest Star Blair Hickey Pete Guest Star Dean West Stapleton Guest Star Bill Parks Crazy Willie Guest Star Floriana Lima Haley Guest Star Rome Shadanloo Kate Guest Star Sonia Rockwell Sadie Guest Star Darcy Rose Byrnes Lucy Zinman Guest Star Carter Bays Executive Producer Craig Thomas Executive Producer Jamie Rhonheimer Writer Pamela Fryman Director