| Josh Radnor | Ted Mosby |
| Jason Segel | Marshall Eriksen |
| Cobie Smulders | Robin Scherbatsky |
| Cristin Milioti | Tracy McConnell
(credit only) |
| Neil Patrick Harris | Barney Stinson |
| Alyson Hannigan | Lily Aldrin |
| Marshall Manesh | Ranjit |
| Tim Gunn | Tim Gunn |
| William Zabka | Billy Zabka |
| Ellen D. Williams | Patrice |
| Melissa Tang | Amanda |
| Robert Belushi | Linus |
| Cate Scott Campbell | Lisa |
| Di Koob | Lauren |
| Tracey McCall | Bikini Babe Bombshell
(uncredited) |
| Cynthia Murell | Gorgeous Woman
(uncredited) |
| Ryan Philbin | Wedding Guest
(uncredited) |
| Bob Saget | Narrator
(voice) (uncredited) |
| Eric Womack | Mustache Guy
(uncredited) |