Go-Go Tomago (Leiko Tanaka) is a superhero appearing in American comic books published by Marvel Comics. Created by Steven T. Seagle and Duncan Rouleau, she first appeared in Sunfire & Big Hero 6 #1.
A re-imagined version of Go-Go appears in Big Hero 6 (2014), voiced by Jamie Chung. She is depicted as a stoic, athletic adrenaline junkie who wields electromagnetic discs and roller skates. Chung reprised the role in Big Hero 6: The Series and the video game Kingdom Hearts III.