Jangles the Clown

In Inside Out, there are two distinct entities with the name Jangles the Clown. The first is a giant clown, residing in Riley Andersen's Subconscious and being a major point of distress for her, while the second is a real clown in San Francisco, who shows up at birthday parties and was likely the inspiration for the version in Riley's mind.

In Inside Out
Jangles is first seen in Riley's Subconscious, after Joy, Sadness and Bing Bong all end up being banished to there. While looking for Bing Bong, Joy and Sadness come across a trail of candy wrappers, and following them, discover Bing Bong in a balloon cage on Jangles, with the implication that Jangles ate the candy that Bing Bong was crying. Joy and Sadness barely manage to free Bing Bong from the balloon cage without waking Jangles, but then realize that Riley's dream is still going on and that the Train of Thought won't run until she's awake, and therefore, decide to wake Jangles up and lead him to Dream Productions. Furthermore, this provides an escape plan for Joy and Sadness, as Jangles can easily break the door leading to the Subconscious with his hammer. Jangles then appears in Riley's dream, interrupting a rather boring dance featuring Rainbow Unicorn, and successfully scares Fear out of his seat, at the same time waking Riley up.

The credits scene of Inside Out reveals Jangles, in real life, to be a clown that children, for the most part, actually ignore. Furthermore, he resents his job, with his Joy, voiced by Peter Sagal, proclaiming "Six years of drama school for this." The novelization Inside Out: Driven by Emotions further expands on this real Jangles, revealing that Riley saw him on her cousin's birthday party and that this was the likely inspiration for Jangles in the Subconscious.

In parodies
Barring the brief appearance in the CreativityTheEmotion outro mimicking the Hitler Rants Parodies outro, Jangles is yet to appear or be mentioned in any Inside Out parody to date.

Trivia

 * At occasions, since Inside Out lacks a true antagonistic figure and instead primarily features redeemed antagonists such as Joy, Anger and Riley's parents, Jangles is sometimes considered to be the main villain of Inside Out.