To his credit, Malcolm had me completely convinced that he did not want to do the Supervillian Shuffle.I'm sure he is an amazing person, and from what I've seen he seems pretty cool. But I'm just not convinced about his acting skills, sorry.
I could give a lot of examples, but you can easily see it on the finale of Demo Reel:
Tamara is supposed to be exited, and she delivers it well. Doug is supposed to be increasingly confused and a bit scared and he also delivers (granted he does it cartoonishly and not realistically).
But Malcolm seems like he is just remembering his lines, only moving his eyebrows slightly. And he is supposed to be confused, worried, and even annoyed about Doug acting all crazy remembering people that never existed. He is supposed to show this great range of emotions to create tension... but he doesn't deliver. His eyes and tone of voice remain the same throughout the whole scene. He is only seen shaking his head now and then to remind us he is annoyed.
Maybe it's the bad directing, but he really needs to step up his game.