Sir, I'll have you know that, "that blond guy" is none other than Neil Patrick Harris.

His acting range covers an immense range of characters; from teen heartthrob Doogie Howser, to the psychic GeStaPoesque Carl Jenkins, to comedy villain Dr Horrible, to playboy Barney Stinson.

He's gay but he plays cis-het womanizing sluts so well that a lot of people assume he's a cis-het womanizing slut IRL.

Unlike his fake slut persona, he's actually a real magician and does the tricks in HIMYM himself. He even has his own card deck with a secret code in it https://store.theory11.com/products/neil-patrick-harris-playing-cards

"that blond guy" indeed. Herumph sir. I say herumph to that!