Samm Levine, who co-starred with Jason on Freaks and Geeks, auditioned for the role of Barney, but has said Neil Patrick Harris was a much better choice.
He makes a cameo in the first season while waiting in line to enter the nightclub.
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Things You Didn't Know About HIMYM
FanfictionHere are some mind-blowing facts that you probably didn't know about the show How I Met Your Mother.
