Lyndsy Fonseca and David Henrie in How I Met Your Mother (2005)

BTS-How I Met Your Mother-"The Platinum Rule Episode"-Pictured: Josh Radnor & Lester G. Reynolds-Los Angeles, CA

How I Met Your Mother (Season 9, Episode 4)

Kurt Scholler in How I Met Your Mother (2005)

Monique Edwards in "How I Met Your Mother".

“How I Met Your Mother” Season 7, Episode 10 “Tick, Tick, Tick…”

How I Met Your Mother - Slap Bet (Season 2, Episode 9)

Josh Radnor in How I Met Your Mother (2005)

Monique Edwards with Cobie Smulders in "How I Met Your Mother".

Josh Radner as "Ted Mosby" and Darcy Rose Byrnes as "Lucy Zinman" in How I Met Your Mother -  episode I HEART NJ

Dead bartender Mark scene from S2E14 of "How I Met Your Mother"

Screencap from CBS' 'How I Met Your Mother'

Ashley Williams and Josh Radnor in How I Met Your Mother (2005)

Cobie Smulders in How I Met Your Mother (2005)

Alyson Hannigan and Jason Segel in How I Met Your Mother (2005)

Jennifer Lopez and Neil Patrick Harris in How I Met Your Mother (2005)

Alyson Hannigan, Suzie Plakson, and Jason Segel in How I Met Your Mother (2005)

Sarah Chalke and Josh Radnor in How I Met Your Mother (2005)

Neil Patrick Harris and Josh Radnor in How I Met Your Mother (2005)

Neil Patrick Harris in How I Met Your Mother (2005)

Cobie Smulders and Jay Ellis in How I Met Your Mother (2005)

Neil Patrick Harris, Josh Radnor, and Pedro Miguel Arce in How I Met Your Mother (2005)

Neil Patrick Harris, Carla Toutz, Josh Radnor, Pedro Miguel Arce, and Mark Edward Smith in How I Met Your Mother (2005)

Neil Patrick Harris and Cobie Smulders in How I Met Your Mother (2005)

Alyson Hannigan and Alan Fudge in How I Met Your Mother (2005)

John Sloan and Kristen Schaal in How I Met Your Mother (2005)

Josh Radnor and Morgan Peter Brown in How I Met Your Mother (2005)

Neil Patrick Harris and Jason Segel in How I Met Your Mother (2005)

Alyson Hannigan in How I Met Your Mother (2005)

Neil Patrick Harris, Alyson Hannigan, Jason Segel, Josh Radnor, and Cobie Smulders in How I Met Your Mother (2005)

Jason Segel in How I Met Your Mother (2005)

Josh Radnor and Cristin Milioti in How I Met Your Mother (2005)

Neil Patrick Harris, Alyson Hannigan, Jason Segel, Josh Radnor, Cobie Smulders, and Cristin Milioti in How I Met Your Mother (2005)