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Kristen Bell as Sarah Marshall
Universal/courtesy Everett; Jim Spellman/Getty

Over the years, the actress has become a beloved voice-over staple, narrating theGossip Girlseries and making her Disney princess debut as theFrozenfranchise’sAnna. She has also since starred in flicks likeCouples Retreat(2009),Bad Moms(2016) andLike Father(2018). Bell is still the small-screen icon she was in the early aughts, having starred onHouse of Lies,aVeronica Marsreboot, and the critically acclaimedThe Good Place.
In addition to the nearly 100 acting credits (and growing) under her belt, Bell has also executive produced a number of series, including the animatedDo, Re & MiandThe Tiny Chef Show. In 2020,she co-wrote a children’s book,The World Needs More Purple People.
Bellmarried fellow actorDax Shepardin 2013, and the pair share two daughters —Lincoln and Delta.
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Jason Segel as Peter Bretter
Universal/courtesy Everett Collection; Michael Hurcomb/Shutterstock

Jason Segelwrote, produced and starred in the hit rom-com — which features one of the most laugh-out-loud break-up scenes of all time. Segel is Peter, the struggling composer trying to move on from ex-girlfriend Sarah with a trip to Hawaii — only to run into her and her new rockstar beau at the hotel.
He got his start on the cult classic 1999 seriesFreaks and Geeksbefore starring on the renowned sitcomHow I Met Your Motherfrom 2005 to 2014. Since, he has starred in many comedies, often alongsideSarah MarshallcostarPaul Rudd, likeI Love You, Man(2009) andThis Is 40(2012).Other credits includeBad Teacher(2011),The Muppets(2011), This is the End(2013) and The End of The Tour (2015).
03of 12Mila Kunis as Rachel JansenUniversal/courtesy Everett;George Pimentel/GettyAfter theThat'70s Showstar lifted Peter’s spirits as hotel concierge Rachel,Mila Kuniscontinued to land starring roles in comedies and dramas alike. She followed upForgetting Sarah Marshallwith films likeBlack Swan(2010),No Strings Attached(2011) andBad Moms —alongside costar Bell — andFour Good Days(2020).Kunis has voiced Meg Griffin onFamily Guysince the series premiere in 1999 and appeared in more than a dozen episodes ofSeth Green’sRobot Chicken.In 2022 Kunis produced and starred inLuckiest Girl Alive. It was announced the following year that she will executive produce and star alongsideMichael Keatonin upcoming filmGoodrich.The actresstied the knotwith her formerThat ’70s ShowcostarAshton Kutcherin 2015, and they have two children:daughter Wyatt Isabelle and son Dmitri Portwood.
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Mila Kunis as Rachel Jansen
Universal/courtesy Everett;George Pimentel/Getty

After theThat'70s Showstar lifted Peter’s spirits as hotel concierge Rachel,Mila Kuniscontinued to land starring roles in comedies and dramas alike. She followed upForgetting Sarah Marshallwith films likeBlack Swan(2010),No Strings Attached(2011) andBad Moms —alongside costar Bell — andFour Good Days(2020).Kunis has voiced Meg Griffin onFamily Guysince the series premiere in 1999 and appeared in more than a dozen episodes ofSeth Green’sRobot Chicken.
In 2022 Kunis produced and starred inLuckiest Girl Alive. It was announced the following year that she will executive produce and star alongsideMichael Keatonin upcoming filmGoodrich.
The actresstied the knotwith her formerThat ’70s ShowcostarAshton Kutcherin 2015, and they have two children:daughter Wyatt Isabelle and son Dmitri Portwood.
04of 12Russell Brand as Aldous SnowUniversal/courtesy Everett; Kevork Djansezian/GettyThe British actor and comedian played the controversial, leather-clad rocker Aldous Snow, who wooed Sarah with cheeky antics.Russell Brandreprised his role in a spin-off film two years later,Get Him to the Greek(2010),where he metfuture ex-wifeKaty Perrywhile filming her cameo appearance.Brand went on to star inJulie Taymor’sThe Tempest(2010),voice Dr. Nefario in theDespicable MeandMinionsmovies (2010–2022) — which featuredSarah Marshallcostars Segel, Kristen Wiig and Jack McBrayer — appear inDiablo Cody’sParadise(2013),voice Creek inTrolls(2016) and play Windlesham in the latest adaptation ofDeath ontheNile(2022).The multitalented star is also a standup comedian with several tours and specials, a prolific writer (think sports columns, novels, autobiographies andchildren’s books), podcaster and activist. Since 2017, Brand has hostedUnder the Skin with Russell Brand,where he interviews academics, pop culture figures and artists.In 2012, Brand testified before a British parliamentary committee in support of decriminalizing drugs fromhis perspective of a recovered addict. He chronicled his journey overcoming addiction in his 2017 book,Recovery: FreedomfromOur Addictions.He marriedLaura Gallacher in 2017.
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Russell Brand as Aldous Snow
Universal/courtesy Everett; Kevork Djansezian/Getty

The British actor and comedian played the controversial, leather-clad rocker Aldous Snow, who wooed Sarah with cheeky antics.Russell Brandreprised his role in a spin-off film two years later,Get Him to the Greek(2010),where he metfuture ex-wifeKaty Perrywhile filming her cameo appearance.
Brand went on to star inJulie Taymor’sThe Tempest(2010),voice Dr. Nefario in theDespicable MeandMinionsmovies (2010–2022) — which featuredSarah Marshallcostars Segel, Kristen Wiig and Jack McBrayer — appear inDiablo Cody’sParadise(2013),voice Creek inTrolls(2016) and play Windlesham in the latest adaptation ofDeath ontheNile(2022).
The multitalented star is also a standup comedian with several tours and specials, a prolific writer (think sports columns, novels, autobiographies andchildren’s books), podcaster and activist. Since 2017, Brand has hostedUnder the Skin with Russell Brand,where he interviews academics, pop culture figures and artists.
In 2012, Brand testified before a British parliamentary committee in support of decriminalizing drugs fromhis perspective of a recovered addict. He chronicled his journey overcoming addiction in his 2017 book,Recovery: FreedomfromOur Addictions.
He marriedLaura Gallacher in 2017.
05of 12Jonah Hill as MatthewUniversal/courtesy Everett; Rachel Murray/GettyJonah Hill— already well-known for his roles inSuperbad(2007) andKnocked Up(2007) — hilariously played the resort waiter and Aldous Snow fanboy, utterly lacking in social graces. Hill reunited with Brand inGet Him to the Greek,this time as an ambitious record company executive on an impossible mission to wrangle the eccentric musician.In addition to parts in comedies like21and22 Jump Street(2012, 2014),voicing Carl (a sausage) in the unforgettably raunchySausage Party(2016) and playing the inept Chief of Staff/president’s son inDon’t Look Up(2021),Hill proved his Oscar-nominated dramatic chops inMoneyball(2011) andThe Wolf of Wall Street(2013).Hill made his directorial debut with the nostalgic coming-of-age filmMid90s(2018)and went on to direct and produce the documentaryStutz(2022), detailing the career of his real-life therapist. In 2023, Hill’s interracial/interfaith comedy,You People, hit Netflix, in which he stars alongsideEddie Murphy,Julia Louis-DreyfusandLauren London.Hill is the brother toLadybird(2017) and Broadway actressBeanie Feldstein. Hill and girlfriend Olivia Millar areexpecting their first child togetherin 2023.
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Jonah Hill as Matthew
Universal/courtesy Everett; Rachel Murray/Getty

Jonah Hill— already well-known for his roles inSuperbad(2007) andKnocked Up(2007) — hilariously played the resort waiter and Aldous Snow fanboy, utterly lacking in social graces. Hill reunited with Brand inGet Him to the Greek,this time as an ambitious record company executive on an impossible mission to wrangle the eccentric musician.
In addition to parts in comedies like21and22 Jump Street(2012, 2014),voicing Carl (a sausage) in the unforgettably raunchySausage Party(2016) and playing the inept Chief of Staff/president’s son inDon’t Look Up(2021),Hill proved his Oscar-nominated dramatic chops inMoneyball(2011) andThe Wolf of Wall Street(2013).
Hill made his directorial debut with the nostalgic coming-of-age filmMid90s(2018)and went on to direct and produce the documentaryStutz(2022), detailing the career of his real-life therapist. In 2023, Hill’s interracial/interfaith comedy,You People, hit Netflix, in which he stars alongsideEddie Murphy,Julia Louis-DreyfusandLauren London.
Hill is the brother toLadybird(2017) and Broadway actressBeanie Feldstein. Hill and girlfriend Olivia Millar areexpecting their first child togetherin 2023.
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Paul Rudd as Chuck
Universal/courtesy Everett; Lars Niki/Getty

A long-standing fixture of Hollywood, theageless actorplayed a stereotypically laid-back surf instructor at the Hawaiian resort where Peter and Sarah both find themselves post-breakup.
Paul Rudd, who has racked up a whopping 130-plus acting credits over his 30-plus-year career, followed upForgetting Sarah Marshallwith films likeI Love You Man, This is 40, They Came Together(2014) and, in 2015, he joined the Marvel Cinematic Universe asAnt-Man.
He starred in, and executive produced the 2019 Netflix seriesLiving with Yourself, which earned him his first-everGolden Globenomination for best actor. One of the many highlights of Rudd’s impressive résumé is his status asPEOPLE’s Sexist Man Alive 2021.
The actor is also an activist for children who stutter, marine life conservation and Alzheimer’s disease research and is a cofounder ofThe Big Slick, a celebrity sports event to support Kansas City’s Children’s Mercy Hospital.
07of 12Bill Hader as Brian BretterUniversal/courtesy Everett; David Crotty/Patrick McMullan via GettyAfter his turn as Peter’s constructively-critical stepbrother and bestie Brian,Bill Hader— who first rose to fame as aSaturday Night Livestar — has frequently lent his voice to animated roles, likeInside Out(2012), Turbo(2013),The Angry Birds Movie(2016) andToy Story 4(2019). The actor has also held supporting roles in films likeThis is 40, 22 Jump Street,Amy Schumer’sTrainwreck(2015) andIt: Chapter Two(2019).Hader created and acted on the mockumentary comedy seriesDocumentary Now!alongside formerSNLcostarFred Armisen. In 2018, Hader co-created, wrote, directed, executive produced and starred on the HBO mega-hitBarry— ending after its fourth season in 2023 — whichearned him the Emmyfor outstanding lead actor in a comedy series two years in a row.In 2006, he married Maggie Carey, thoughthe two divorced in 2018. They share three daughters —Hannah Kathryn, Harper and Hayley Clementine.
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Bill Hader as Brian Bretter
Universal/courtesy Everett; David Crotty/Patrick McMullan via Getty

After his turn as Peter’s constructively-critical stepbrother and bestie Brian,Bill Hader— who first rose to fame as aSaturday Night Livestar — has frequently lent his voice to animated roles, likeInside Out(2012), Turbo(2013),The Angry Birds Movie(2016) andToy Story 4(2019). The actor has also held supporting roles in films likeThis is 40, 22 Jump Street,Amy Schumer’sTrainwreck(2015) andIt: Chapter Two(2019).
Hader created and acted on the mockumentary comedy seriesDocumentary Now!alongside formerSNLcostarFred Armisen. In 2018, Hader co-created, wrote, directed, executive produced and starred on the HBO mega-hitBarry— ending after its fourth season in 2023 — whichearned him the Emmyfor outstanding lead actor in a comedy series two years in a row.
In 2006, he married Maggie Carey, thoughthe two divorced in 2018. They share three daughters —Hannah Kathryn, Harper and Hayley Clementine.
08of 12Liz Cackowski as Liz BretterUniversal/courtesy Everett; Jamie McCarthy/GettyAs Brian’s wife (also named Liz), Liz Cackowski displayed a priceless ineptitude for video chatting.Cackowski is best known as a comedy writer and producer, having written forSaturday Night Live,Community, Up All NightandWine Country(2019).Outside of writing, she made cameos in films likeI Love You Man, The To Do List(2013) and theNeighborsmovies (2014, 2016).She is married to actor/writer Akiva Schaffer (one-third of The Lonely Island, alongsideAndy Sambergand Jorma Taccone), with whom she has two daughters: Hazel and June.
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Liz Cackowski as Liz Bretter
Universal/courtesy Everett; Jamie McCarthy/Getty

As Brian’s wife (also named Liz), Liz Cackowski displayed a priceless ineptitude for video chatting.
Cackowski is best known as a comedy writer and producer, having written forSaturday Night Live,Community, Up All NightandWine Country(2019).Outside of writing, she made cameos in films likeI Love You Man, The To Do List(2013) and theNeighborsmovies (2014, 2016).
She is married to actor/writer Akiva Schaffer (one-third of The Lonely Island, alongsideAndy Sambergand Jorma Taccone), with whom she has two daughters: Hazel and June.
09of 12Jason Bateman as Animal Instincts DetectiveUniversal; Amy Sussman/WireImageThe film’s post-credits scene gave an update on Sarah’s acting career with a teaser of a new project,Animal Instincts, where she plays a psychic detective with whomJason Batemanis partnered.The Hollywood mainstay has since starred in projects likeHorrible Bosses(2011),This is Where I Leave You(2014) andGame Night(2018).He also voiced the fox, Nick Wilde, in Disney’s animated hit, Zootopia(2016).Bateman went on to direct and star in the Netflix knockout seriesOzarkas Marty Byrde, which won him anEmmy Awardfor outstanding directing for a drama series in 2019 and twoScreen Actors Guild Awardsfor best actor. He joined the podcast game in 2020 withSmartLess,co-hosted with actorsWill ArnettandSean Hayes.He has been married toAmanda Ankasince 2001, and they have two daughters —Francesca NoraandMaple Sylvie.
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Jason Bateman as Animal Instincts Detective
Universal; Amy Sussman/WireImage

The film’s post-credits scene gave an update on Sarah’s acting career with a teaser of a new project,Animal Instincts, where she plays a psychic detective with whomJason Batemanis partnered.
The Hollywood mainstay has since starred in projects likeHorrible Bosses(2011),This is Where I Leave You(2014) andGame Night(2018).He also voiced the fox, Nick Wilde, in Disney’s animated hit, Zootopia(2016).
Bateman went on to direct and star in the Netflix knockout seriesOzarkas Marty Byrde, which won him anEmmy Awardfor outstanding directing for a drama series in 2019 and twoScreen Actors Guild Awardsfor best actor. He joined the podcast game in 2020 withSmartLess,co-hosted with actorsWill ArnettandSean Hayes.
He has been married toAmanda Ankasince 2001, and they have two daughters —Francesca NoraandMaple Sylvie.
10of 12Kristen Wiig as Yoga InstructorUniversal; Kevin Mazur/GettyKristen Wiigstole the scene with her cameo as a yoga instructor who couldn’t help putting Peter down while, uh, feeling Aldous up.AfterForgetting Sarah Marshall,Wiig went on to land supporting roles in films likeAdventureland(2009),Whip it(2009),The Diary of a Teenage Girl(2014) andWhere’d You Go Bernadette(2019).She made her DC Universe debut asvillain Barbara Minerva/the CheetahinWonder Woman 1984(2020) alongsideGal Gadotand lent her voice to theDespicable Mefranchise. TheSNLalumna also co-wrote and starred in the critically acclaimed comedyBridesmaids(2011), and, in 2021,Barb and Star Go to Vista Del Mar.Wiig is married to actorAvi Rothman, and the couple welcomed twins,Shiloh and Luna, in 2020.
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Kristen Wiig as Yoga Instructor
Universal; Kevin Mazur/Getty

Kristen Wiigstole the scene with her cameo as a yoga instructor who couldn’t help putting Peter down while, uh, feeling Aldous up.
AfterForgetting Sarah Marshall,Wiig went on to land supporting roles in films likeAdventureland(2009),Whip it(2009),The Diary of a Teenage Girl(2014) andWhere’d You Go Bernadette(2019).She made her DC Universe debut asvillain Barbara Minerva/the CheetahinWonder Woman 1984(2020) alongsideGal Gadotand lent her voice to theDespicable Mefranchise. TheSNLalumna also co-wrote and starred in the critically acclaimed comedyBridesmaids(2011), and, in 2021,Barb and Star Go to Vista Del Mar.
Wiig is married to actorAvi Rothman, and the couple welcomed twins,Shiloh and Luna, in 2020.
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Jack McBrayer as Darald
Universal/courtesy Everett; Jerod Harris/Getty

The Emmy-nominated30 Rockstar made a memorable appearance as a religious honeymooner who just couldn’t bring himself to consummate his marriage with his new wife.
McBrayer will appear in the upcomingJerry Seinfeld-directed comedy,Unfrosted: The Pop-Tart Story,about the creation of, you guessed it: Pop-Tarts.
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Maria Thayer as Wyoma
Universal/courtesy Everett; ANGELA WEISS/AFP via Getty

Before her turn as Darald’s wife, Wyoma, Maria Thayer had already landed several supporting roles in well-loved films likeHitch(2005) and 2006’sAccepted(alongside costar Hill).
source: people.com