Finn

Finn, also known as Pen before the series was greenlighted to be on Cartoon Network, is a twelve-year-old boy who goes on adventures with his best friend, Jake. His white hat he wears everywhere greatly characterizes him, for he thinks his hat is awesome. He will often shout random mathematical terms. In the Animated Short, it was shown that Finn in fact has feelings for Princess Bubblegum. In Slumber Party Panic, Princess Bubblegum mentions that Finn is bad at mathematics. According to the episode Ocean of Fear, he can't swim.

Appearence
Finn wears a white hat that covers his entire head,but leaves an opening for his face. He wears dark blue shorts and a plain blue shirt. He carries a green backpack on his back, and wears black shoes. When going to the Ice Kingdom he wears a brown turtleneck. It has also been noticed that Finn has messed up teeth. He maybe 5ft tall or taller.

Personality
Finn is adventureous. He is usually happy around Jake, since he's his pal. He often gets angry when facing the Ice King. Finn is attracted to Princess Bubblegum as noted in some episodes. Another thing that is slightly hinted is that Finn may be sort of a "lady's man" since Princess Bubblegum, Hot Dog Princess,Melissa, and Marceline have kissed him or flirted with him. Finn will save anyone in danger. That's his deal. Its is also seemed that he gets angry if anyone flirts with Princess Bubblegum. A clear example of this is in Ricardio the Heart Guy.

Abilities
Finn is proficent in Kung-Fu, as seen in the animated short. It should also be noted that he cannot swim. He is able to do the science dance which was introduced in Ricardio The Heart Guy.

History
As mentioned in Memories of Boom Boom Mountain, the reason Finn is a hero is because one day when he was a baby he took a "boom boom" on a leaf, and fell in it. Ever since then he cries when he takes one. It is unknown who gave birth to him similar to To The Marvelous Misadventures Of Flapjack, or how he found Jake. It is never shown in the series of Finn without his white hat. Much similar to Edd from Ed Edd & Eddy.

Quotes
"Shmow-zow!"

"Algebraic!"

"He's not my dog! He's my friend!"

"Ohhhhhhh, holy cow!"

"My hat-is awesome!"

"I'll slay anything that's evil, that's my deal!

"Get ready for an uppercut, you dog!"

Trivia

 * Pen got his name from the show's director and producer, Pendleton Ward.
 * Pen is voiced by Zack Shada as where Finn is voiced by his younger brother, Jeremy Shada
 * Even though Finn can't swim in the episode Ocean of Fear, he was seen swimming in a lake in the episode Business Time.
 * In the video game World of Warcraft there are player characters on almost every server named Finn.
 * Jake says Finn crys when he takes a Number 2.