Dylan McDermott and Dermot Mulroney make their long-awaited appearance on screen together tonight on LA to Vegas

Entertainment Weekly

In advance of tonight's episode, Mulroney, who begins a multiple-episode stint on the Fox comedy, and McDermott discussed their three-decade history working as actors with similar names. McDermott says he was once told, “'there can only be one. One of you is going to have to change your name.'" "So I’ve been waiting for 30 years for Dermot to change his name," joked McDermott. Mulroney responded: “We’ve never had this conversation, Dylan. There was a moment while I was represented at that agency where that came up. I gave it some thought. I really did. Naturally, it made sense for me to use the last name McDermott, because Dermot’s in that last name. The first name Dermot that I would be relinquishing by changing the name. I just slipped it into the last name, McDermott, the one that you have.”