How I Met Your Mother

The Platinum Rule (Season 3, Episode 11)

TV-PG

TV Episode | 22 min | Comedy, Drama, Romance

Barney and the gang try to convince Ted not to date the doctor that is removing his tattoo by giving examples of the Platinum Rule.

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Cast	+ Add Cast
11 cast members

Name	Known for
Josh Radnor Ted Mosby Ted Mosby See fewer	Liberal Arts (2012)
Jason Segel Marshall Eriksen Marshall Eriksen See fewer	Forgetting Sarah Marshall (2008)
Cobie Smulders Robin Scherbatsky Robin Scherbatsky See fewer	The Avengers (I) (2012)
Neil Patrick Harris Barney Stinson Barney Stinson See fewer	A Series of Unfortunate Events (2017)
Alyson Hannigan Lily Aldrin Lily Aldrin See fewer	Buffy the Vampire Slayer (1997)
Hayes MacArthur Curt Curt See fewer	Angie Tribeca (2016)
Charlene Amoia Wendy Wendy See fewer	How I Met Your Mother (2005)
Kristen Schaal Laura Laura See fewer	Cloudy with a Chance of Meatballs 2 (2013)
John Sloan Michael Michael See fewer	The Triangle (2005)
Lester G. Reynolds Intimidating Patient (uncredited) Intimidating Patient (uncredited) See fewer	Still Smiling
Bob Saget Narrator (voice) (uncredited) Narrator (voice) (uncredited) See fewer	Full House (1987)