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 Slaughter, Princess Bubblegum mentions that Finn is bad at mathematics. According to the episode Finn Underwater, 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.

Personality
Finn is adventerous. 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. Finn will save anyone in danger.

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, or how he found Jake.

Quotes
"Shmow-zow!"

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

"What time is it?!"

"Oh,Holy Cow!"

"My hat, is awesome!"

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

"Are you going to smash my skull, and breath my blood mist?!"

"Get ready for an uppercut you dog!"

"Come down here lady, and fight me!'

"I don't want to hear a lecture dude!" I just wanna go home."

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
 * Yet Finn can't swim in the episode Ocean of Fear, he was seen swimming in a lake in the episode Business Time.