Ken is Cody's doll/"boyfriend" in SuperMarioLogan. Even though he is a protagonist, he is also an antagonist because in Bowser Junior's Lottery Ticket!, it is implied that he hates Cody (although he is friends with him). And in The Ouija Board! he gets possessed.
- In his first appearance in Bowser Junior's Summer Vacation, the Ken doll Cody brings along is based on the Hawaiian Vacation Ken, but the one used in later videos is the Toy Story 3 Ken.