|First Appearance||Ghost Smile D.I.Y.|
|Family and Relations|
Mart is one of several new characters introduced in Ghost Smile D.I.Y. He will be a major protagonist in Ghost Smile 3.
Very little of Mart's history is known at this point, other than that he became a ghost after dying during the Great Depression.
Mart is sarcastic and witty, and rather greedy. He, like many other Greys, died of starvation and therefore is obsessed with being rich and rising above poverty.