Arcee is one of the female Autobots and one of the main characters of the Transformers franchise. In the series, she became best friends with Spike Witwicky's son, Daniel, viewing him as if he were her own son. Before the war, she was a former Autobot scout on Cybertron and a follower of Optimus Prime. She was also Chromia and Elita-One's sister in some adaptations.
In Transformers Prime, she was one of Optimus Prime's most loyal friends, being his go-to woman whenever the need calls for it and has formed a sibling relationship with the human Jackson Darby.
She has also appeared in several comic book crossovers including Transformers / My Little Pony