In case you can't watch that clip because you're at your job "contributing to society" or whatever, here's the rundown: Charlie Day is excitedly explaining some pseudo-science bullshit that he wants to do to a giant alien monster. Meanwhile, Ron Perlman is skeptical, confused, and essentially just Ron Perlman as hell about it. I mean, look at those goddamn sunglasses. Who else could pull that off? Nobody.
Not even Perlman, arguably.
But, amazingly, Perlman doesn't dominate this scene. Day, the weenie from It's Always Sunny, somehow manages to hold his own against this raw, Perlmanian onslaught. He takes lines that are utter nonsense ("We both know that the Kaiju are so large that they need two brains to move around, like a dinosaur!") and delivers them in a way that makes you not care. Because he is the Mulder of Kaiju.
Imagine it: every single episode they have a new mystery to investigate -- say, in a small town where a creepy old man says, "Something came in and destroyed our entire city." Immediately, Day is all, "I think it was a Kaiju!" And Perlman snaps back, "Day, there are no scientific studies to ever confirm that Kaiju attacks are real. I'm sure these cities were flattened by perfectly explainable scientific phenomena."
"Come on, Day, we don't have time for your crazy theories."
As the show goes on, it becomes more and more ridiculous that Perlman doesn't believe him until, finally, Day gets kidnapped by Kaiju and some other actor (let's say Burn Gorman) has to come in and take over as Perlman's partner, and he does his best but it's nowhere near as good. The show falls into decline and vanishes from prime-time television -- but not from our hearts. And in case you're not 100 percent convinced at this point, here's the goddamn poster: