One

One (1) is an Algebralien and a major antagonist in the Battle for Dream Island series. She was the main antagonist of the fifth season, Battle for Dream Island: The Power of Two. One made her first appearance in the show in the stinger of "Outbreak At Stake", where she emerges from the damaged Moon, which she was trapped in after being ostracized by Four and the other Algebraliens after she killed Three in 2009. Prior to that, she first debuted in "X Finds Out His Value" and was shown as a recommended character in "The...

Kills

51+

Deaths

1

Debut

X Finds Out His Value