One of the highlights of the season one finale was watching Martin play off his character's physicality after Charles is temporarily paralyzed (he still manages to help Oliver and Mabel prevent the Arconia from exploding).
Martin told EW that fans can expect similar instances of physical comedy in the new season.
"There is a little bit toward the end of season two, and it's very different," the actor said. "I don't want to reveal anything, but it's definitely physical comedy."
"Only Murders in the Building" premieres Tuesday on Hulu, with new episodes available weekly. You can watch the trailer here.