Wouldn't be surprised. While searching him on Youtube I even stumbled on Peter Serafinowicz's appearance on Stephen Colbert where they're talking about him even doing 'bad lip reading' videos for trump in different personalities, one of them being 'Sassy Trump', so he might have had something to do with this show coming about in general.
I don't think he's doing the voice for Sassy Justice, though. That sounds more like Trey Parker to me. But they probably brought him in to do Michael Caine.
I don't think he's doing the voice for Sassy Justice, though. That sounds more like Trey Parker to me. But they probably brought him in to do Michael Caine.
https://youtu.be/Oe28UOFNlxk?t=138