|“||You won't get away with this!!! (threatens to burn Avon)||”|
— Fireboy to Avon
Fireboy is a fire spirit with the elemental ability of fire.
Fireboy, while usually calm, is not to be angered.
- "Watergirl's Origins 1
- "Firegirl and Vanessa's Friendship" (mentioned)
- Main article: Fireboy/Gallery
- Main article: Fireboy/Relationships
- Main article: Fireboy/Quotes
- In "Lavas & Waters", he said water would kill him, but in many other episodes, he is immune to water.
- He is revealed to be right-handed in "Bullydude Bully".
- Fireboy, and his family, have the ability to control fire. This is it, nevertheless, justified due to the fact that they are all made of fire.
- In "Altering the Past", it is shown that he is not only unharmed by other sources of fire, but those other sources of fire empower his source of fire.
- He is the first character to speak in the series.
- He (and the whole series) is based on a multiplayer internet game.
- Therefore, everything is just fanon.
- He is shown to be colorblind in "Colorblind FireBoy". His colorblindness is cured in the end of the episode.
- His fiery hair moves automatically and rather quickly.