In Short's multiple-episode arc he will play the new boss of the character Marshall Eriksen, played by Jason Segel.
"How I Met Your Mother," according to CBS, "is a comedy about Ted (Josh Radnor) and how he fell in love. It all started when Ted's best friend, Marshall (Segel), dropped the bombshell that he was going to propose to his longtime girlfriend, Lily (Alyson Hannigan), a kindergarten teacher. At that moment, Ted realized that he had better get a move on if he, too, hopes to find true love. Helping him in his quest is his friend Barney (Neil Patrick Harris), a confirmed bachelor with endless, sometimes outrageous opinions, a penchant for suits and a foolproof way to meet women. When Ted meets Robin (Cobie Smulders), he's sure it's love at first sight, but destiny has something else in store. The series is narrated through flashbacks from the future."
Short won the Tony Award in 1999 for his performance in Little Me and was also seen on Broadway in Martin Short: Fame Becomes Me and The Goodbye Girl. He is best known for his work on "Saturday Night Live" and will also be guest starring on this season of Showtime’s "Weeds."
"How I Met Your Mother" airs Monday nights at 8 PM ET on CBS.