‘How I Met Your Mother’ Finale: What the CBS Series Meant for Its Stars’ Careers (Photos)

How Neil Patrick Harris, Alyson Hannigan and cast benefited from being on the hit sitcom

2 of 7
Neil Patrick Harris (Barney Stinson) Doogie Who, sir? Between starring as America's favorite child doctor and taking on the role of consummate ladies' man Barney Stinson, Harris worked steadily but without much momentum, with the short-lived "Stark Raving Mad" being his longest-lasting project. Since "HIMYM," Harris has become a ubiquity, developing into a go-to awards host and providing voicework for the popular "Smurfs" movie franchise.