Hilariously, the tie between Donald and Mac’s dad gets even stronger when we realize that Donald is portrayed by Gregory Scott Cummins, who also plays Luther McDonald aka Mac’s dad. Sure, Luther looks a lot more criminal, but that’s what makes his double role in the series hilarious. Donald is the buttoned-up suburban dad figure that Mac’s always been looking for … and he is literally the same man as Mac’s dad.

Gregory’s last appearance as Luther was in Season 13 in the episode, “Mac Finds His Pride,” when Mac tries to come out to his dad. However, Luther walks out on Mac’s expression of his sexuality through an audiovisual performance, and Mac is left without a true father figure. Now that Uncle Donald McDonald is here, could we see more of Gregory in this new role as the father Mac never had?

New episodes of It’s Always Sunny in Philadelphia air every Wednesday at 10 p.m. EST on FXX.