Neil Patrick Harris - Legendary: The Cast of How I Met Your Mother

In this exclusive series documenting the rise to fame of the cast of How I Met Your Mother, we take a look at Neil Patrick Harris' success since being cast as Barney. Get the CBS app for iPhone & iPad! Click HERE: http://bit.ly/12rLxge. Watch full episodes of How I Met Your Mother at http://www.cbs.com/shows/how_i_met_your_mother/video/