We love seeing the 'How I Met Your Mother' gang at work -- have any of them had a single normal coworker yet? -- which is why casting Martin Short as Marshall's new boss is brilliant. Kal Penn will also be stopping by to romance Robin a bit. It must be a juicy role, considering his last gig was working for the Obama administration.

'How I Met Your Mother' Season 7 premieres Mon., Sept. 19, 8PM ET on CBS