Birthday Boy Blam is a short male humanoid with a gray rectangular prism for a head and a darker gray cylinder shaped body. On the cameras, he has a rather simple appearance and face. His face is composed of two dots with a simple line for a mouth. The exact identity of Blam is unknown. In the game, he almost does not show any character traits, but in the comics he was shown as an ordinary innocent protagonist who became a victim of his alternative evil double Kevin Jr.