Ant Man and the Wasp Cast and Characters

In 1987, Janet van Dyne / Wasp shrinks between the molecules of a Soviet nuclear missile, disabling it but becoming trapped in the sub-atomic quantum realm. Hank Pym / Ant-Man raises their daughter Hope believing that Janet is dead. Years later, former criminal Scott Lang takes up the mantle of Ant-Man and discovers a way to both enter and return from the quantum realm. Pym and Hope begin work on repeating this feat, believing they may find Janet alive. Lang and Hope also start a romantic relationship and begin training to fight together as Ant-Man and the Wasp, until Lang secretly helps Captain America during a skirmish between the Avengers in violation of the Sokovia Accords. Lang is placed under house arrest, while Pym and Hope go into hiding and cut ties with Lang
Two years later, Pym and Hope briefly manage to open a tunnel to the quantum realm. Lang receives an apparent message from Janet with whom he is quantumly entangled. Despite having only days left of house arrest, Lang decides to call Pym. Hope kidnaps Lang, leaving a decoy so as not to arouse suspicion from FBI agent Jimmy Woo. Seeing the message as confirmation that Janet is alive, Pym and Hope work to create a stable tunnel so they can take a vehicle to the quantum realm and retrieve Janet. Hope arranges to buy a part needed for the tunnel from black market dealer Sonny Burch, but Burch has realized the potential profit that can be earned from Pym and Hope's research and double-crosses them. Hope fights Burch and his men off, until she is attacked by a quantumly unstable masked woman. Lang tries to help fight off this "ghost", but she escapes with Pym's portable lab.

Pym reluctantly visits his estranged former partner Bill Foster who helps them locate the lab. The ghost restrains Lang, Hope, and Pym when they arrive, and reveals herself to be Ava Starr. Her father Elihas, another former partner of Pym's, accidentally killed himself and his wife during a quantum experiment that caused Ava's unstable state. Foster reveals that he has been helping Ava, who they plan to cure using Janet's quantum energy. Believing that this will kill Janet, Pym refuses to help them and the trio manage to escape.

Opening a stable version of the tunnel this time, Pym and Hope are able to contact Janet, who gives them a precise location to find her, but warns that they only have two hours before the unstable nature of the realm separates them for a century. Burch learns their location from Lang's business partners Luis, Dave, and Kurt, and informs a contact at the FBI. Luis warns Lang, who rushes home before Woo can see him breaking his house arrest. This leaves Pym and Hope to be arrested, and for their lab to be taken by Ava.

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.

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 doing this in the quantum realm, Pym, Hope, and Janet all disintegrate.

Paul Rudd ... 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.

Evangeline Lilly ... 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.

Michael Peña ... Luis
Lang's former cellmate and a member of his X-Con Security crew

Walton Goggins ... Sonny Burch
A "low-level criminal-type" who seeks to obtain Pym's technology for sale on the black market.

Bobby Cannavale ... Paxton
A police officer and husband to Lang's ex-wife Maggie.

Judy Greer ... Maggie
Lang's ex-wife

T.I. ... Dave
A member of Lang's X-Con Security crew.

David Dastmalchian ... Kurt
A member of Lang's X-Con Security crew

Hannah John-Kamen ... Ava / 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.

Abby Ryder Fortson ... Cassie
The daughter of Lang and Maggie

Randall Park ... Jimmy Woo
An FBI agent and Lang's parole officer

Michelle Pfeiffer ... Janet Van Dyne / Wasp
The original Wasp who is lost in the quantum realm. She is Pym's wife and Hope's mother

Laurence Fishburne ... Dr. Bill Foster
An old friend of Pym who was once his assistant on Project Goliath

Michael Douglas ... Dr. 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