Conn was a captive held by Mimi in Merlee's Mansion in Super Paper Mario. He is always seen in the Mushroom room.

Although he acts "uppity", deep inside he really hates being alone and loves when people talk to him. He tells the heroes the pass code for the VIP room for 100 rubees.

Later, after Mimi leaves, he said he misses teaching new prisoners "the ropes" of being one, and admits to being lonely.

His name could refer to the word "con", meaning to scam someone out of money.