The Tracking Board website is reporting that actor Randall Park (Fresh Off the Boat, Veep) will be joining the Ant-Man and the Wasp movie. Park will be playing S.H.I.E.L.D. agent Jimmy Woo in the film. Jimmy Woo has a long history in the Marvel Comics universe, starting as an FBI agent in 1956's Yellow Claw #1. He later joined S.H.I.E.L.D. and the Godzilla Squad.
More recently Woo was found near death and in stasis. Marvel Boy restored Woo, but did so as he last remembered him, from the 1950s; so much of Woo's memories since then were erased though he regained his youth. Woo is mostly associated with his team, the Agents of Atlas (Woo, Marvel Boy, Gorilla Man, Namora, M-11, and Venus).
Jimmy Woo front left from the 2015 Agents of Atlas #5 variant cover by Ed McGuinness
Park joins Hannah John-Kamen as a newcomer not from the first film.John-Kamen's character has not yet been revealed. Ant-Man and the Wasp flies into theaters July 6, 2018.