Look at the people in this picture. A potential caption for it is "four exceptionally attractive young adults."
Unfortunately, these people are on TV, which means that this photo would more likely be captioned "three exceptionally attractive young adults and one BULLSHIT MONSTER MASH OF A BOY FACE."
That's because Mr. Boo-Face from the picture plays a NERD. A comic-reading, Killers-listening NERD. And in TV world, that means everyone must be repulsed by his presence.
This happens all the time on TV! They need a character to be distinctly unappealing for the plot, and yet during casting they'll just say "fuck it" and cast actors who resemble actual angels.
Left GuyRight Guy
It's the guy on the right.
His name is Matthew Gray Gubler and he used to model for Marc fucking Jacobs.