Ken

Kenneth "Ken" is Cody's doll/homosexual boyfriend Cody actually believes that Ken is a real person, and has had sex multiple times with him. Bowser Jr. and Joseph think Cody is weird and gay because he has sex with Ken multiple times. Cody often exhibits a little too much public affection for the doll as for example in Bowser Junior's Package, he can be seen on Facebook "bath time" with Ken with bubbles (implied cum) on his mouth and on Ken's genitals.

In Spoken, Ken had an alive puppet counterpart.

In The Ouija Board!, Ken had an alive evil counterpart.

Trivia

 * The Ken doll Cody originally bought is different from the one used in later videos. The Ken doll Cody brings along with him now is based on the Hawaiian Vacation Ken or Toy Story 3 Ken.
 * In Bowser Junior's Fireworks!, he was attached to the fireworks and Bowser Junior, Cody, and Joseph thought he died but he survived.
 * According to Bowser Junior's Game Night 2, Ken is Greek.
 * Inspite being a doll, there are several instances where Ken is shown to possibly be alive until it fully confirmed in Spoken:
 * In Bowser Junior's Game Night, when Cody loses in Operation, Ken's face turns to a frown.
 * In Bowser Junior's Train Table!, Ken cries at the thought of sharing Cody with Chadwick.
 * In Bowser Junior's GoKart Race!, when Cody falls out the GoKart, Ken actually drives the Kart and wins.
 * In Truth Or Dare!, when Ken apparently walks all the way to Bowser's apartment.
 * In Bowser Junior's Lottery Ticket!, when Cody asks Ken what Ken would do with $1 Billion, Ken imagines shooting Cody with a gun. It is revealed that Ken hates Cody, likely because Cody uses him a a sex toy.
 * In The Ouija Board! Ken comes to life and goes possessed and murders Cody, Chef Pee Pee, Joseph, and Bowser Junior.
 * In Bowser Junior's Package, when Ken was "stealing" the package, he jumped for it and immediately took off his clothes.
 * In Cody The Magician!, when Cody said "OH SEXY ASSISTANT!", He turned around to Cody.
 * In Black Yoshi The Assistant! Ken is seen rising from the background in the scene Junior was talking to his friends.
 * In Cody's Missing! Ken is shown naked walking toward Cody
 * In Spoken He is shown alive trying to murder Junior and Cody.
 * In Bowser Junior's Lottery Ticket! it is implied that Ken hates Cody.
 * However, in Spoken, he is seen to like Cody
 * Ken is the first SML Character to fall down the balcony and then die.
 * Somehow in Happy Halloween!, Ken is revived and dressed up for Halloween as an astronaut. Maybe Cody bought a new Ken doll or fixed him.
 * In Taken, Ken calls Cody and moves under the bed.

Did you like Ken? Yes! No. Kinda