Dylan McDermott or Dermot Mulroney? It's an age-old question, and one that somehow gets no less perplexing as time rolls on.

Nevertheless, guest-host Jamie Foxx made an attempt at sorting through the confusion on last night's "SNL" (recap), with regular cast members Jay Pharoah and Kenan Thompson puzzling through with him.

So how did they fare? And which of the two perennially-confused actors showed up to take part? As to the latter question, I'm still not quite sure...and oddly enough, he isn't either.

Watch the full clip below to see if you can figure it out.

A former contributor to sites including MTV's The Backlot and Bloody-Disgusting, Chris Eggertsen worked in film development before indulging his love of pop culture writing full time. He specializes in horror, the intersection of social issues and entertainment and Howard Stern. He's on Twitter @HitFixChris.