Water Prince is the ruler of the Water Kingdom. He is one of Finn's best friends and ally in heroism as well.
Not much is known about WP's childhood. It can be assumed that his childhood was rather normal, and included some training for his role as leader.
This is where his predjudice against the Fire People developed, for this was when the Fire Kingdom declared war on the Water Kingdom.
Water Prince is extremely bold. He prefers large, impactful actions. He lacks any talents in subtlety or restraint. This can sometimes lead to reckless actions.
However, he is quite well mannered to friend and stranger alike.
In addition, he has a very strong sense of justice, which is very similar to Finn's. However, he is less conflicted by situations that require moral choices.
Water Prince does have a severe flaw, though. He is extremely biased against members of the Fire Kingdom. Naturally, he doesn't approve of Finn's relationship with Flame Princess. Due to this, Flame Princess doesn't approve of his friendship with Finn. Finn is conflicted about how to deal with this.
Water Prince is made of living water, and therefore can flow and move like water. He can take different liquid forms, such as a snake or a bubble. When he is heated,part of him will turn into steam, and can reform later. Cold is his main weakness, for he is most vulnerable when frozen.
Princess Bubblegum dislikes his reckless tendancies, but respects his desire to protect Finn from Flame Princess. Water Prince's opinions on Bubblegum are currently unknown.
He has had very limited interaction with Marceline.
- He scored a 14 on the Mary-Sue Test.