JSYK has an interview with Chris Massoglia:

JSYK: Were the costumes as creepy in real life or is it mostly just special effects?

Chris: The costumes were actually really, really cool. There weren’t that many CGI characters. The concept of the Cirque du Freak is all these different characters that have all these freaky abilities, and so some characters just have CGI built around the character. Orlando Jones’s character – he played Alexander Ribs – is super super skinny, and doesn’t have any ribs, so you can see all his internal organs. That was all CGI. Jane Krakowski’s character she can grow her arms back after they’ve been chopped off, and that was obviously CGI, but there are some characters that wore special effects makeup or prosthetic makeup. Patrick Fugit, who played Snake Boy, is totally green and scaly everywhere. It was all prosthetic makeup, and it looked really good. Mr. Tiny was in a fat suit and he had all prosthetic makeup on his chin and face to make him look more chubby. That was cool because he’s a really skinny person in real life, so it’s kind of weird to see him walk around with a fat head on.

Read it all HERE!