Jester appears to have long, dark-ish purple hair that he styles into a half updo. A white 'mask', with slanted eyes, black sclera and purple pupils; the mask also appears to have purple diamond marking under the left eye, an sharp, upside down purple marking heart on the right, along with two small, purple lines that come down from the bottom of the 'masks' mouth to the chin of the 'mask'. He is quite androgynous.

The 'mask' seems to go up, creating the illusion of horns above his hair; and the 'masks' mouth appears to be a wide grin, showing sharp white teeth. The mouth can show other expressions other than grinning, along with the pupils too, and can open. His real name is Jessie and he is a streamer.

Jester wears an asymmetrical, high-collared black silk tunic that fastens tightly around one side of his neck, flowing down into a draped, corset-cinched waist. He wears a pleated maxi skirt that is black on the outside and the inside of the folds have a space themed design. He wears a single golden asteroid earring and knee high boots.

He is shown as a mysterious character often describing himself as a dominating character in the entire friend group of streamers. While being the second youngest, Jester is a very great leader to the friend group, he usually stays calm and collected no matter the situation.

He knows a few other streamers, they are all friends(and non-human creatures pretending to be human). These streamers are called Pierrot (real name Peter), Harlequin (real name Harley), Doctor (real name Dominic), Ticket (real name Bil) and Columbina (real name Nina)

Jester finds Harlequin a bit annoying, but still sees him as a friend. Jester knows that Ticket likes him, and he likes him too. Jester really respects , and is really proud of how well Pierrot cooks now, as he was the one that got Pierrot into cooking. Jester likes being around Doctor, as he’s very easy to talk to. And Jester is protective over Columbina, as she’s the youngest in the friend group, being 20. Jester often colabs with his friends.

His chat is personified into a white and purple bunny that Pierrot drew himself. The bunny is named Fluffkins and is the one that says the chat donation messages.

Jester doesn’t have a sense of self, he doesn’t know who he truly is, he just acts in a way that others like. He is protective because it makes others happy, he leads because it makes others happy. He is a great leader, but it drains his social battery quickly. He tends to be really silent after streams. He hides how tired he truly is with a lot of coffee, he is a coffee addict.

He has minor schizophrenia, he tents to hear his own thoughts and how he views the world out loud trying to talk to him, but doesn’t respond to the auditory hallucinations, unless he’s alone. He does sometimes get visual hallucinations when he’s tired, usually being extra people or faces in places where there are no faces.

While on stream, jester will never refer to his friends by their real names, only using their online names or online nicknames.