In The Boys, Rose Byrne sings John Lennon's “Imagine” alongside a troupe of other celebrities, parodying a real-life event. She had her Broadway debut in a revival of You Can't Take It With You in 2014 and later starred opposite her husband, Bobby Cannavale, in Medea at the Brooklyn Academy of Music. Opposite Kelli O'Hara, Byrne is currently starring in the champagne-soaked comedy Fallen Angels on Broadway.

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Don Cheadle voices Nubian, a superhero in a volatile marriage, in the Diabolical short “Nubian vs Nubian.” He's currently making his Broadway acting debut alongside Ayo Edebiri in Proof as a troubled mathematician, but he already has a Tony Award win for producing A Strange Loop.

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Saturday Night Live veteran Cecily Strong is announced for the Vought Rising prequel show. She starred in the two-season run of the musical TV series Schmigadoon! and made her stage debut in the Off-Broadway revival of Jane Wagner's The Search for Signs of Intelligent Life in the Universe. Shortly after making her Broadway debut in All Out: Comedy About Ambition by Simon Rich, she's currently on stage in What Happened Was... opposite Corey Stoll.

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When Vought evangelizes a reactionary war on Christmas through a “Vought On Ice” number, it hires singing ice skaters as avatars of its superheroes. One voice belongs to Shoshana Bean, whose Broadway career launched with Hairspray in 2002 and soared when she played Elphaba in Wicked. Her roles in Mr. Saturday Night and Hell's Kitchen netted her two Tony nominations, and she's up for a third for the Broadway vampire musical The Lost Boys as strong-willed single mother Lucy Emerson.

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Andrew Rannells joins the “Vought on Ice” trio as the singing voice of the ice skating Homelander, who proclaims his love of Jesus with the same fervor with which Rannells sang “I Believe” in his Tony-nominated role of Elder Price in The Book of Mormon. He and his Mormon co-star Josh Gad reunited for Gutenberg! The Musical! in 2024, and they'll make guest appearances in the show from June 9-14, 2026, to celebrate its 15th anniversary.

Rannells's other Broadway credits include Falsettos, The Boys in the Band, and All In: Comedy About Love.

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Rounding out the “Vought on Ice” group is James Monroe Iglehart, who’s currently performing in & Juliet. He’s the ideal figure for an upbeat ice skating musical, considering his Disney credentials as the original Genie in Aladdin on Broadway (Tony win) and the Central Park staging of Hercules. His Broadway credits include The 25th Annual Putnam County Spelling Bee, Memphis, Hamilton, and A Wonderful World (Tony nomination for playing Louis Armstrong).

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Josh Gad is on a superhero kick between the Marvel TV show WonderMan and The Boys. He's best known for voicing Olaf in the Frozen film franchise and originating the role of Elder Cunningham in The Book of Mormon on Broadway. In June, he'll make guest appearances in the musical to celebrate its 15th anniversary.

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As a main antagonist of season 2, Stormfront is an avowed neo-Nazi and match made in hell for Homelander. This ruthless role, played by Aya Cash, is the antithesis of Cash’s stage role in Giant on Broadway and in London, as a Jewish American publisher who confronts Roald Dahl (played by John Lithgow) on his antisemitic writings. She is up for a 2026 Tony Award nomination for her performance.

Cash has also appeared off Broadway in various productions, starting with The Pain and the Itch at Playwrights Horizons.

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After playing a Marvel superhero on The Eternals, Kumail Nanjiani also appears in The Boys's “Imagine” parody and returns to season 5 to be among another ill-fated celebrity circle. He also voices a scientist in a Diabolical animated short. The comedian served a term as Abraham Lincoln in Oh, Mary! in 2025, marking his Broadway debut.

Those who only know Ethan Slater as the titular square sponge in the SpongeBob SquarePants musical or Boq in the Wicked movies might be shocked to see him as villain Dr. Thomas R. Godolkin in Gen V. For theatre fans who know him as Lee Harvey Oswald in the Classic Stage Company’s 2022 revival of Assassins, it wouldn't be surprising. Slater also makes a cameo in The Boys season 5 and is slated to appear in Vought Rising.

In an antithesis to his Godolkin role, he played real-life resistance fighter and mime Marcel Marceau in Marcel on the Train, which he co-wrote, off Broadway. He also starred in Spamalot on Broadway and Classic Stage’s Edge of the World off Broadway.

Known to theatre fans as the original Lafayette/Thomas Jefferson in Hamilton, Daveed Diggs debuts on The Boys as a villainous supe, the Christian fire-and-brimstone preacher Oh-Father. Beyond Hamilton, Diggs starred in a 2019 production of Suzan-Lori Parks’s White Noise and appeared in two movie musicals: Trolls Band Together as Spruce/Bruce and The Little Mermaid live-action remake as Sebastian the Crab.

When Hamish Linklater enters Gen V as a new headmaster in its second season, the protagonists sense something off-kilter about him. Linklater has brought eccentricity to the stage as well, most recently in The Disappear off Broadway in 2026. Other theatre credits include numerous Shakespeare's plays: Hamlet, Twelfth Night, The Winter's Tale, the Merchant of Venice, The Comedy of Errors, Much Ado About Nothing, Cymbeline, and Henry IV.

Colby Minifie is equal parts fierce and whimpering as Ashley Barrett, a Vought assistant who climbs the ranks to acting CEO to vice president. She launched her Broadway career as a standby in the 2005 play The Pillowman and subsequently originated roles in 2016's Long Day's Journey into Night and 2017's Six Degrees of Separation.

Giancarlo Esposito plays the long-time antagonist and former Vought CEO Stan Edgar, but by season 5, he finds himself fighting against the industry he fashioned. Before his Emmy-nominated villain role as Gus Fring on Breaking Bad and Better Call Saul, Esposito was shaped by the Broadway musical theatre world, starting with 1968's Maggie Flynn. He subsequently appeared on Broadway in The Me Nobody Knows, Lost in the Stars, Seesaw, Merrily We Roll Along, Don't Get God Started, Cat on a Hot Tin Roof, and more. In addition, he earned an Obie Award and a Drama Desk nomination for the Off-Broadway show Distant Fires in 1991.

Stage actress Susan Heyward plays Sage, a scheming, super-smart supe, in The Boys. This fits the fun fact we learn about Sage in season 5: In her youth, she liked reciting William Shakespeare’s Othello. Heyward herself appeared on Broadway in The Trip to Bountiful and Harry Potter and the Cursed Child.

The Emmy-winning Ilana Glazer, of Broad City fame, wrote and performed in the Diabolical short “Boyd in 3D,” with their real-life and Broad City sibling Eliot Glazer. Ilana Glazer had their start in improv with the Upright Citizens Brigade Theatre, and they went on to win a Tony Award for producing A Strange Loop and make their Broadway acting debut in 2025's Good Night, And Good Luck opposite George Clooney.

Comedian/actor Craig Robinson makes an unlucky season 5 cameo in The Boys. On the brighter side, The Office star made his Broadway debut in All Out: Comedy About Ambition in 2026.

Vought employs puppet shows in their campaign against progressivism, and among the show’s puppeteer cast is Kira Hall, who appeared in the first Canadian production of the raunchy puppet-populated Avenue Q in 2011.

Did anyone expect an Oscar and BAFTA-winning veteran like Tilda Swinton to voice an octopus named Ambrosius? Distinguished for her luminous presence on screen, she has also graced the London theatre scene, starring in Manfred Karge's solo play Man to Man in fall 2026. She will reportedly reprise her performance in New York in spring 2027.

Jason Isaacs voices the animated iteration of Billy Butcher in the Diabolical short “I'm Your Pusher.” The Harry Potter film star's theatre origins date back to the Edinburgh Fringe Festival in Scotland. He is known for his West End stage work, including Angels in America, 1953, The Force of Change, The Dumb Waiter, and Dead Poets Live: Byron & Shelley.

Michael Cera has a voice role in the Diabolical short “I'm Your Pusher,” and the actor gets a name-drop in season 5 of The Boys. The Scott Pilgrim film lead has three Broadway credits: This is Our Youth, Lobby Hero, and The Waverly Gallery.

Cera’s Scott Pilgrim co-star Kieran Culkin also had a voice role in “I'm Your Pusher.” Culkin is known for his Emmy-nominated role as the youngest son of a media overlord in Succession. Culkin has childhood memories of performing in the NYC theatre scene, and in 2025, he debuted on Broadway in a revival of David Mamet’s Glengarry Glen Ross. He also played off-Broadway roles in The Moment When, After Ashley, and subUrbia.

When Hughie sees his estranged mother, played by Rosemarie DeWitt, he is none too happy. DeWitt is known for television roles on Standoff and United States of Tara. As for the Off-Broadway scene, she performed in The Butter and Egg Man, Danny and the Deep Blue Sea, Small Tragedy, Swimming in the Shallows, and Family Week. She also appeared in the movie musical La La Land as the sister of Ryan Gosling’s lead character.

Abraham Lim plays Kenji Miyashiro, a dangerous supe with a tortured past. The actor got his breakout role in The Glee Project. On Broadway, Lim played the role of Jae Ik, a K-pop boy band member, in the musical KPOP.

In a fitting commentary on child actors struggling in adulthood, The Boys cast Haley Joel Osment, famous in his youth for The Sixth Sense and Forrest Gump, as a supe television star past the height of fame. Osment made his Broadway debut in David Mamet's play American Buffalo in 2008.

The "John and Sun-Hee" short in Diabolical is the anthology’s most heartwrenching installment, owing in part to Randall Duk Kim, voicing a husband desperate to find a cure for his dying wife.

The Obie Award winner is a co-founder of the American Players Theatre and frequently interpreted the works of Frank Chin, first in The Chickencoop Chinaman, the first Asian American-authored play to be produced professionally in New York. In 1974, Kim starred in Chin's second play, The Year of the Dragon, and he's also appeared on Broadway in The King and I, Golden Child, and Flower Drum Song.

Frances Conroy had a voice role as Barb in the Diabolical short “An Animated Short Where Pissed-Off Supes Kill Their Parents.” Acclaimed with a Golden Globe win and Emmy nominations, Conroy had her Broadway debut in 1980 in Edward Albee's The Lady from Dubuque.

In Gen V, Sean Patrick Thomas plays ex-superhero Polarity, a man with magnetic powers and father of main character Andre Anderson. It was a successful audition for a Raisin in the Sun production that turned Thomas away from an intended law career and toward acting, leading to his Broadway debut in a Raisin revival as Joseph Asagai. In addition, he has Off-Broadway credits in Shakespeare's Timon of Athens and Much Ado About Nothing.

Christian Slater, who narrates the Diabolical short “An Animated Short Where Pissed-Off Supes Kill Their Parents,” had quite the youthful days on Broadway. The Heathers movie star can be seen in a 1983 Tony Awards clip as the younger version of Merlin's title wizard. He also starred in Macbeth, Copperfield, and The Music Man as a child, later starring in Side Man and The Glass Menagerie as an adult. Most recently, he starred off Broadway in Curse of the Starving Class opposite Calista Flockhart and Cooper Hoffman in 2025.

The Emmy-nominated Jason Ritter makes a cameo in Gen V as part of a hallucination. The actor has appeared off Broadway in 2000's The Beginning of August and 2005's Third with Lincoln Center Theater.

Laila Robins is the steely Colonel Grace Mallory, who founded the titular Boys to fight against Vought. The Walking Dead star has a prolific stage resume that began with The Real Thing on Broadway in 1985.

Malcolm Barrett plays Seth Reed, a writer at Vought. This befits the fact that Barrett is a playwright himself, having written short plays such as Trial by Fury and The Board Room, and won an Ovation Award for his play The Recommendation. In 2024, he appeared in the play Brushstroke at Odyssey Theatre Ensemble.

Pulled into sketch comedy fame by Rosie O'Donnell, Stephen Guarino plays Kyle, an archivist supe known as "The Rememberer." The I'm Dying Up Here veteran also played Ruth in the original West End cast of Titanique in 2024.

Tim Daly is Rick, the estranged father of Starlight, and they share a heart-to-heart in season 5. Daly co-starred with his sister, Tyne Daly, in the Off-Broadway play Downstairs. His prolific resume also includes Coastal Disturbances and The Caine Mutiny Court-Martial.