Gosalyn Mallard

Gosalyn Waddlemeyer-Mallard is the adopted daughter of Drake "Darkwing Duck" Mallard. Much of the show is based on Drake and Gosalyn's father-daughter relationship. Gosalyn is shown to be an impulsive, cute, morally-sound, spunky, athletic, bombastic, and well-meaning 9 year old girl who often gets into trouble. She is very bright and often finds loopholes within her own promises allowing her to get her own way. Her wit is just as quick and acerbic as her adoptive father's, and she is often brave to the point of foolhardyness. She is also forthright and honest with her friends and idolizes her adopted father.

She wears a purple T-shirt with rolled-up pink sleeves, white socks, and magenta Converse sneakers.

She is voiced by Christine Cavanaugh.