Barby Koala is the second-in-command of the Downunda Freedom Fighters that appears in the Sonic the Hedgehog comic series published by Archie Comics. She has aided the Downunda Freedom Fighters in numerous battles against Crocbot and acknowledges the group ultimately serves the Kingdom of Acorn. She is sometimes more decisive than her leader, Walt Wallabee, but is always ready and willing to follow orders.
She has white fur, blue eyes and wears red boots and gloves and brown shoulder sash. She also has basic combat skills and razor sharp claws.
Barby is not only the object of Walt Wallabee's affections, but also that of a minor crush from Tails. Though she is much older than Tails and not romantically interested in him, she does think that he is cute and has flirted with him in the past. There is yet to see if she has any romantic interest in any character.