The movie features a variety of antihero MCU characters such as Yelena Belova (Florence Pugh), Bucky Barnes (Sebastian Stan), Red Guardian (David Harbour), John Walker (Wyatt Russell), Taskmaster (Olga Kurylenko), Ghost (Hannah John-Kamen), and Valentina Allegra de Fontaine (Julia Louis-Dreyfus). The teaser trailer also introduces some new characters.