|Age||16 years (presumably)|
|First appearance||Darkness Rising, Part 1|
She is Sierra's best friend always hanging out with each other wherever she goes. Her name hasn't been said and she's a minor character in the show.
She was seen in Darkness Rising part 1 with Sierra. She and Sierra giggled at Jack, who they saw was talking to his motorcycle. Sierra and her friend were nearly run over by two Vehicon cars but they were able to get out of the way.
In Speed Metal, Sierra's best friend was with Sierra when Jack challenged Vince to a race.