How I Met Your Mother 6x11: The Mermaid Theory
| Serie | How I Met Your Mother |
| Staffel | 6 |
| Folge | 11 |
| Länge | 30 Minuten |
| Genres | Comedy, Romance |
| Erstausstrahlung | 12.10.2011 |
| Autoren | Robia Rashid |
| Regisseur | Pamela Fryman |
Die Schauspieler der Episode
| Schauspieler | Rolle |
|---|---|
| Josh Radnor | Ted Mosby |
| Jason Segel | Marshall Eriksen |
| Cobie Smulders | Robin Scherbatsky |
| Neil Patrick Harris | Barney Stinson |
| Alyson Hannigan | Lily Aldrin |
| Kyle MacLachlan | The Captain |
| Jennifer Morrison | Zoey |
| Lyndsy Fonseca | Daughter |
| David Henrie | Son |
| Tamara Lynn Davis | Iris |
| Angus McClelland | Angus |
| Bob Saget | Narrator (voice) (uncredited) |