| Josh Radnor | Ted Mosby |
| Jason Segel | Marshall Eriksen |
| Cobie Smulders | Robin Scherbatsky |
| Neil Patrick Harris | Barney Stinson |
| Alyson Hannigan | Lily Aldrin |
| Robert Wisdom | McCracken |
| Bill Fagerbakke | Marvin Eriksen Sr. |
| Andrew Astor | Addison |
| Brian Patrick Collins | Teen Wolf |
| Kaela Elmido | Girl |
| Justin Lawrence | Ryan |
| Charlie Stewart | Kenny |
| Alex Bennett | Alex
(uncredited) |
| Beau Bowden | St. Ann's Basketball Player #4
(uncredited) |
| Desiree Brajevich | Rave Girl
(uncredited) |
| Matthew Cuen | Basketball Kindergardener
(uncredited) |
| Danny Glover | Roger Murtaugh
(archive footage) (uncredited) |
| Bob Saget | Narrator
(voice) (uncredited) |
| Labrandon Shead | Basketball Player
(uncredited) |