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The Mermaid Theory

When Ted's new friendship with Zoey tests the theory that single men and married women can't be friends, he invites her husband, "The Captain," to hang out with them. Meanwhile, Marshall and Robin decide to spend alone time together, and Barney and Lily possibly have a fight.

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  • Originally Aired December 6, 2010
  • Runtime 25 minutes
  • Content Rating United States of America TV-14
  • Production Code 6ALH11
  • Network CBS
  • On Other Sites IMDB
Name Type Role
Robia Rashid Writer
Angus McClelland Guest Star
Tamara Lynn Davis Guest Star
Kyle MacLachlan Guest Star
David Henrie Guest Star
Jennifer Morrison Guest Star
Lyndsy Fonseca Guest Star
Pamela Fryman Director