Fall TV Preview

How I Met Your Mother Exclusive: Sunny Star Jimmi Simpson's Got Dirt on Marshall!

Marshall’s job hunt on How I Met Your Mother will hit a snag this fall, and one of those creepy McPoyle twins from It’s Always Sunny in Philadelphia is to blame!

Comic actor-turned-Breakout Kings regular Jimmi Simpson (a.k.a. one half of Sunny‘s outrageously incestuous duo) has signed on to guest star as Pete Votto, an old college buddy of Jason Segel’s employment-challenged character.

In the episode, slated to air in late September, Pete posts on Youtube an embarrassing video of Marshall channeling his decade-old alter ego “Beercules,” the greatest party animal in the booze-sodden history of Wesleyan College. Marshall, worried the clip will ruin a potential job opportunity, begs him to take it down.

Simpson’s resume also includes arcs on 24, Psych and CSI, but Late Show with David Letterman fans probably know him best as Lyle the Intern.