is candy kevin playable?

What about the other 3 NPCs? The robot Santa,the Santa with a basuka and the killer snowman?

All npcs

He is fun to play with. You tap him, he performs a tap dancing complete with sound. He is one of my earliest if not first premium item during the days when donuts is hard to come by. And before I understand the importance of percentages

there's 0 bonus on characters only on decos and few buildings

He makes tap dancing noises when he bows. And yet he's wearing ice skates. I think you'd better get him for this reason.