Josh Radnor Ted Mosby Actor Jason Segel Marshall Erikson Actor Cobie Smulders Robin Sherbatsky Actor Neil Patrick Harris Barney Stinson Actor Alyson Hannigan Lily Aldrin Actor Cristin Milioti Tracy McConnell Actor Bob Saget Narrator Marshall Manesh Ranjit Guest Star Tim Gunn Tim Gunn Guest Star Melissa Tang Amanda Guest Star Ellen D. Williams Patrice Guest Star Robert Belushi Linus Guest Star Di Koob Lauren Guest Star Cate Scott Campbell Lisa Guest Star Carter Bays Executive Producer Craig Thomas Executive Producer Pamela Fryman Executive Producer, Director Stephen Lloyd Executive Producer Chris Harris Executive Producer Chuck Tatham Executive Producer Jamie Rhonheimer Executive Producer Kourtney Kang Executive Producer Matthew Kuhn Writer