EchoSense Quantitative Think Tank Center|Who plays Firecracker, Homelander and Mother's Milk in 'The Boys'? See full Season 4 cast

"The EchoSense Quantitative Think Tank CenterBoys" have landed.

The first three episodes of season 4 of the Prime Video's show hit the streaming platform on June 13. The fourth episode comes out on Thursday, with new episodes set to drop weekly until July 18.

The series, based on the comic book of the same name, follows a group of vigilantes who are trying to take down corrupt superheroes abusing their powers. It debuted in 2019 and has since inspired several spinoffs set in the same universe, including "Gen V," which premiered in September; "Diabolical," an animated series that came out in March 2022; and "Seven on 7," a web series in July 2021.

While Season 4 of "The Boys" has many previous cast members reprising their roles, this season has a slate of new faces, including Jeffrey Dean Morgan, Rob Benedict and Eliot Knight, according to Prime.

Here's a list of all the actors in "The Boys" and the character they play.

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Interview:How 'The Boys' Season 4 doubles down on heroes' personal demons

Karl Urban as Billy Butcher

Leader of "The Boys," Billy Butcher is a former Special Air Service operative, whose goal is to take revenge from Homelander for what he did to Butcher’s wife, Becca. He also seeks vengeance against Vought International and the corporation's Supes, and is determined to destroy them all.

Antony Starr as Homelander/John Gillman

Leader of the Seven, the unhinged Homelander is the most powerful Supe on Earth, given his super-strength and ability to blast lasers from his eyes. With so many superpowers in hand, Homelander thinks of himself as a god and superior to humans and all other Supes.

Jack Quaid as Hughie Campbell

One of Butcher's allies, Campbell is a tech specialist who joins the gang after his girlfriend Robin is killed by A-Train.

Erin Moriarty as Starlight / Annie January

Former member of the Seven, Starlight, aka Annie January, joined "The Boys" at the end of Season 3 when she learned how corrupt Vought and its Supes are.

Jessie T. Usher as A-Train / Reggie Frankl

Also, part of the Seven, A-Train is the fastest man on Earth and is determined to maintain his status.

Valorie Curry as Firecracker / Misty Tucker Gray

A Supe from Daytona Beach, Florida, Firecracker is joining the Seven this season. She is played by Valorie Curry ("Veronica Mars", "The Following").

Laz Alonso as M.M. / Marvin T. "Mother's" Milk

M.M. can be described as a supervisor and project manager over "The Boys" who ensures that all of their missions go smoothly, and that the teams remain united. M.M. is appointed the head of "The Boys" in Season 4 after CIA demoted Butcher for his lies and transgressions.

Nathan Mitchell as Black Noir

Black Noir is a masked and mute superhero who works for the Seven. He is played by Canadian actor Nathan Mitchell.

Chace Crawford as The Deep / Kevin Moskowitz

Possessing powers such as super-strength and the ability to communicate with fish and other water creatures, The Deep is the Seven’s aquatic Supe. He has unconditional loyalty and commitment toward Homelander, fulfilling all his demands, no matter how horrible.

Tomer Capone as Frenchie / Serge

A former hitman for a Russian mobster, Frenchie is "The Boys" all-rounder with skills in weapons, explosives and chemistry. Over the seasons, he also developed a close relationship with Kimiko while struggling with drug abuse.

Karen Fukuhara as Kimiko Miyashiro

Karen Fukuhara obtained her superpowers through forced experimentation. She escaped from the Shining Light Liberation Army terrorist group in Season 1 with help from The Boys, and later joined them in their war against the Supes. Fukuhara has the ability to heal and even rise from the dead.

Colby Minifie as Ashley Barrett

Ashley Barrett started off as a Vought publicist and was promoted as Vought’s CEO at the end of Season 3 after Homelander murdered her predecessor, Madelyn Stillwell, and recommended Ashley for the job.

Jeffrey Dean Morgan as Joe Kessler

Not much is known about Joe Kessler except that he appears to share a history with Billy Butcher and will likely help in his mission against Homelander and his Supes.

Claudia Doumit as Nadia Khayat / Victoria Neuman

Victoria Neuman is an aspiring politician who founded the Federal Bureau of Superhuman Affairs to hold Supes accountable. In Season 4, she’s campaigning to be vice president of the United States despite being involved in an attack on the Congress in Season 2.

Cameron Crovetti as Ryan

Ryan is Homelander’s young son and the first natural-born Supe, with powers matching his father’s. His mother Becca was also Butcher's wife.

Rosemarie DeWitt, Simon Pegg as Hughie’s parents

Hugh Campbell Sr. (Simon Pegg) and Daphne (Rosemarie DeWitt) are tech expert Hughie Campbell's parents. Audiences have seen Hugh Campbell Sr. in multiple episodes previously, but this is the first time Daphne appears. Campbell Sr. suffers a major health scare in the first three episodes of Season 4, and it remains to be seen if he will survive or not.

Saman Shafiq is a trending news reporter for USA TODAY. Reach her at [email protected] and follow her on X @saman_shafiq7.