In October 2015, Marvel confirmed that Paul Rudd and Evangeline Lilly will both return to play Ant-Manand the Wasp Girl
; August 22, 2016, actor Michael Pena is determined to return and continue to playin the film
.
In February 2017, Michael Douglas, who played a generation of Ant-Man Dr. Hank Pym in the previous game, officially returned to the sequel. He announced the news on his social network; in June, the new actress Hannah Jon Carmen joined; in early July, Korean-American actor Randall Park confirmed to join and will play the role of S.H.I.E.L.D. agent Jimmy Woo in the film; on July 23, the Marvel president announced Lawrence Fei at the SDCC Comic Show Shen Boen will join, he will be played by three generations of Goliathiceberg. At the same time, Michelle Pfeiffer also confirmed to join the film, playing the first generation of Wasp Girl Janet Van Dyne, and Douglas in the film as husband and wife; in late July, Judy Greer confirmed that he will return to " Ant-Man 2: The Wasp Appears", once again starred in "Ant-Man" Scott Lang's ex-wife.
