<P> Lang is soon able to help Pym and Hope escape custody, and they find the lab . Lang and Hope distract Ava while Pym enters the quantum realm to retrieve Janet, but the pair end up fighting Burch and his men, which allows Ava to begin taking Janet's energy . Luis, Dave, and Kurt help apprehend Burch, so Lang and Hope can stop Ava . Pym and Janet arrive safely from the quantum realm, and Janet voluntarily gifts some of her energy to Ava to temporarily stabilize her . </P> <P> Lang returns home once again, in time for a now suspicious Woo to release him at the end of his house arrest . Ava and Foster go into hiding . In a mid-credits scene, Pym, Lang, Hope, and Janet plan to harvest quantum energy to continue helping Ava . While Lang is in the quantum realm doing this, Pym, Hope, and Janet disintegrate . </P> <Ul> <Li> Paul Rudd as Scott Lang / Ant - Man: A former petty criminal who acquired a suit that allows him to shrink or grow in scale while also increasing in strength . Following the events of Captain America: Civil War, in which Lang escapes from the Raft prison, director Peyton Reed said that "he's a fugitive in most of the first Ant - Man movie . He's just a bigger fugitive now ." Rudd was interested in Lang being a regular person rather than "innately heroic or super", and to be driven by his desire to be a responsible parent . </Li> <Li> Evangeline Lilly as Hope van Dyne / Wasp: The daughter of Hank Pym and Janet van Dyne, who is handed down a similar suit and the Wasp mantle from her mother . The writers were excited to properly introduce the character as the Wasp, showing her "power set, how she fights, and what are the injustices that matter to her". Lilly felt the character has "incredible satisfaction" in becoming the Wasp, "something that she has been waiting for her whole life, which is essentially an affirmation from her father". Her relationship with Lang is more complicated than in the first film, and includes anger towards his actions during Civil War . Madeleine McGraw portrays a young Hope van Dyne . </Li> <Li> Michael Peña as Luis: Lang's former cellmate and a member of his X-Con Security crew . There was less opportunity for Peña to improvise compared to the first film . </Li> <Li> Walton Goggins as Sonny Burch: A "low - level criminal - type" who seeks to obtain Pym's technology for sale on the black market . </Li> <Li> Bobby Cannavale as Jim Paxton: A police officer and husband to Lang's ex-wife Maggie . </Li> <Li> Judy Greer as Maggie: Lang's ex-wife . </Li> <Li> Tip "T.I." Harris as Dave: A member of Lang's X-Con Security crew . </Li> <Li> David Dastmalchian as Kurt: A member of Lang's X-Con Security crew . </Li> <Li> Hannah John - Kamen as Ava Starr / Ghost: A woman with molecular instability, who can phase through objects; she is only considered a "villain" because her attempts at survival clash with the heroes' goals . The character is traditionally portrayed as male in the comics, but the creative team believed that the character's gender was irrelevant to its portrayal, and felt casting a woman would be more interesting . John - Kamen enjoyed this "blank - slate" aspect, allowing her to mold the character as her own . Producer Stephen Broussard said that they wanted to cast a lesser - known actress to help maintain the mystery of the character, and John - Kamen "blew us away". RaeLynn Bratten portrays a young Ava Starr . </Li> <Li> Abby Ryder Fortson as Cassie: The daughter of Lang and Maggie . </Li> <Li> Randall Park as Jimmy Woo: An FBI agent and Lang's parole officer . </Li> <Li> Michelle Pfeiffer as Janet van Dyne: The original Wasp who is lost in the quantum realm . She is Pym's wife and Hope's mother . Pfeiffer was Reed's dream casting for the role since his time working on the first film, and he ensured that he received her input on the character . He noted that the character has spent 30 years in the quantum realm, so there is a question regarding how that has affected her . The decision to have the character age over those 30 years even though time works differently in the quantum realm was made to avoid any "sci - fi weirdness" that could take away from the emotional reunions with Pym and Hope in the film . Hayley Lovitt stands in for a young Janet van Dyne, reprising her role from the first film; according to Reed, she had been cast in the first film, before Pfeiffer's involvement, due to her "saucer - like, Michelle Pfeiffer eyes ." </Li> <Li> Laurence Fishburne as Bill Foster: An old friend of Pym who was once his assistant on Project Goliath . Fishburne had approached Marvel about joining the MCU, pitching them a few ideas for whom he could portray, before Marvel offered him the role of Foster in the film . Despite having already portrayed Perry White for the DC Extended Universe, Fishburne admitted that he had always fantasized about being in an MCU film, admitting that he considered himself a "Marvel guy". Reed likened the rivalry between Foster and Pym to that of Steve Jobs and Bill Gates, and wanted an actor who can go "toe - to - toe" with Michael Douglas . Langston Fishburne, Laurence's son, stands in for a young Bill Foster . </Li> <Li> Michael Douglas as Hank Pym: A former S.H.I.E.L.D. agent, entomologist, and physicist who became the original Ant - Man after discovering the subatomic particles that make the transformation possible . Pym has grown a lot closer to his daughter Hope since the first film, and according to producer Kevin Feige he has "that joy of fatherhood" in watching her become a superhero in her own right . Reed was attracted to the "morally dubious" decisions Pym sometimes makes . Dax Griffin stands in for a young Hank Pym, having done so for the first film as well . </Li> </Ul> <Li> Paul Rudd as Scott Lang / Ant - Man: A former petty criminal who acquired a suit that allows him to shrink or grow in scale while also increasing in strength . Following the events of Captain America: Civil War, in which Lang escapes from the Raft prison, director Peyton Reed said that "he's a fugitive in most of the first Ant - Man movie . He's just a bigger fugitive now ." Rudd was interested in Lang being a regular person rather than "innately heroic or super", and to be driven by his desire to be a responsible parent . </Li>

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