How I Met Your Mother: The Three Days Rule

Ted breaks one of Barney and Marshall's relationship rules, texting a woman he recently met, so the pair play a joke on Ted by pretending to be the woman.

Currently 9/10
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9/10 (22 Votes cast)

Episode Info

Episode number: 4x21
Production Number: 4ALH21
Airdate: Monday April 27th, 2009

Director: Pamela Fryman
Writer: Greg Malins

Alternate Airdates:

UK (E4)

May 06, 2010

Guest Stars

Kevin Michael Richardson
As Stan

Rebecca Budig
As Holly

Main Cast

Josh Radnor As Ted Mosby	Jason Segel As Marshall Eriksen
Cobie Smulders As Robin Scherbatsky	Neil Patrick Harris As Barney Stinson
Alyson Hannigan As Lily Aldrin	Bob Saget voiced Narrator / Ted, 2030

Recap

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Episode Notes

This is the first episode where one of the main cast members does not appear at all. Alyson Hannigan (Lily) is absent due to her real-life pregnancy.

Robin only wears baggy shirts and most of the time holds something (like dry cleaning or her bag) in front of her belly, because Cobie Smulders (who plays Robin) is pregnant in real life.