​Brian Denis Cox, CBE (born 1 June 1946) is a Scottish actor. He is known for his work with the Royal Shakespeare Company, where he gained recognition for his portrayal of King Lear. He has also appeared in many Hollywood productions playing parts such as Dr. Guggenheim in Rushmore and William Stryker in X2. He was the first actor to portray Hannibal Lecter on film in the 1986 production Manhunter. Description above from the Wikipedia article Brian Cox , licensed under CC-BY-SA, full list of contributors on Wikipedia.

Brian Cox plays as Logan Roy in Succession.
Brian Cox is the top #1 member of the cast and appears in 29 episodes.

Jeremy Strong (born December 25, 1978) is an American actor. He is best known for his role as Kendall Roy in the HBO television series Succession (2018–present), for which he has won a Primetime Emmy Award for Outstanding Lead Actor in a Drama Series in 2020 and the Golden Globe Award for Best Actor – Television Series Drama in 2022. Time magazine named him one of the 100 most influential people in the world in 2022. Strong started his acting career at Yale School of Drama. After briefly studying at both the Royal Academy of Dramatic Arts in London and the Steppenwolf Theatre Company in Chicago he acted in various plays at the Williamstown Theatre Festival. His first off-Broadway performance was in John Patrick Shanley's Defiance in 2006. His Broadway debut came portraying Richard Rich, 1st Baron Rich in 2008 revival of A Man for All Seasons. That same year Strong made his film debut in Humboldt County. Strong has since appeared in a number of acclaimed films portraying real life people such as John George Nicolay in Steven Spielberg's Lincoln (2012), Lee Harvey Oswald in Peter Landesman's Parkland (2013), James Reeb in Ava DuVernay's Selma (2014), and Jerry Rubin in Aaron Sorkin's The Trial of the Chicago 7 (2020). He has also appeared in Kathryn Bigelow's Zero Dark Thirty (2012), Adam McKay's The Big Short (2015), Sorkin's Molly's Game (2017) and Armageddon Time (2022). Description above from the Wikipedia article Jeremy Strong, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Jeremy Strong plays as Kendall Roy in Succession.
Jeremy Strong is the top #2 member of the cast and appears in 29 episodes.

Kieran Kyle Culkin (born September 30, 1982) is an American actor. The brother of actors Macaulay and Rory, he began his career as a child actor in the films Home Alone (1990), Father of the Bride (1991), The Mighty (1998), and The Cider House Rules (1999). He achieved a career breakthrough after starring in the film Igby Goes Down (2002), for which he was nominated for his first Golden Globe Award, as well as winning a Critics' Choice Movie Award and a Satellite Award. He later appeared in the films Scott Pilgrim vs. the World (2010), Margaret (2011), Wiener-Dog (2016), and No Sudden Move (2021). Since 2018, Culkin has starred as Roman Roy in the HBO television series Succession, for which he won a Critics' Choice Television Award in 2022 was nominated for a Primetime Emmy Award in 2020 and 2022 and three Golden Globe Awards in 2019, 2020 and 2022.

Kieran Culkin plays as Roman Roy in Succession.
Kieran Culkin is the top #3 member of the cast and appears in 29 episodes.

Sarah Snook (born 1987) is a stage, television, and film actress from Adelaide, South Australia. Sarah attended St John's Grammar School in Belair (alongside Ben Nicholas), Scotch College in Mitcham, and NIDA in Sydney, graduating in 2008. While studying at NIDA, she performed in stage productions of Macbeth and Gallipoli, and since graduating appeared in King Lear performed by the State Theatre Company of South Australia. Since then she has starred in Predestination (2014), Jessabelle (2014) and Not Suitable for Children (2012).

Sarah Snook plays as Siobhan 'Shiv' Roy in Succession.
Sarah Snook is the top #4 member of the cast and appears in 29 episodes.

Nicholas Joseph Braun (born May 1, 1988) is an American actor. He is known for his role in the HBO series Succession (2018–present), for which he received a nomination for the Primetime Emmy Award for Outstanding Supporting Actor in a Drama Series in 2020. He has also appeared in several films, including Sky High (2005), Princess Protection Program (2009), Red State (2011), Prom (2011), The Perks of Being a Wallflower (2012), Date and Switch (2014), How to Be Single (2016), and Zola (2021). Description above from the Wikipedia Nicholas Braun, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Nicholas Braun plays as Greg Hirsch in Succession.
Nicholas Braun is the top #5 member of the cast and appears in 29 episodes.

David Matthew Macfadyen (born 17 October 1974) is an English actor. Known for his performances on stage and screen, he gained prominence for his role as Mr. Darcy in Joe Wright's Pride & Prejudice (2005). He currently stars as Tom Wambsgans in the HBO drama series Succession (2018–present), for which he has received a Primetime Emmy Award, two BAFTA Awards, and a Screen Actors Guild Award. Macfadyen is also known for his roles in films such as Death at a Funeral (2007), Frost/Nixon (2008), Anna Karenina (2012), The Assistant (2019), and Operation Mincemeat (2021). He made his television debut in 1998 as Hareton Earnshaw in Wuthering Heights. He portrayed Tom Quinn in the BBC One spy series Spooks (2002–04, 2011), and Inspector Edmund Reid in the BBC mystery series Ripper Street (2012–2016). He also starred as Henry Wilcox in Kenneth Lonergan's miniseries Howards End and Charles Ingram in the Stephen Frears' limited series Quiz (2020).

Matthew Macfadyen plays as Tom Wambsgans in Succession.
Matthew Macfadyen is the top #6 member of the cast and appears in 29 episodes.

Alan Douglas Ruck (born July 1, 1956) is an American actor. He is best known for portraying Cameron Frye, Ferris Bueller's best friend, in John Hughes's film Ferris Bueller's Day Off (1986); Stuart Bondek, a lecherous, power-hungry member of the mayor's staff in the ABC sitcom Spin City; and Connor Roy, the eldest son of a media magnate, in the HBO series Succession. His first film role was in the 1983 drama film Bad Boys, in which he played Carl Brennan, Sean Penn's friend in the film. The same year he played Roger Jackson in Class. Three years later, he was cast as Cameron Frye, Ferris Bueller's hypochondriac best friend in John Hughes' Ferris Bueller's Day Off after Broderick encouraged him to audition for the role -- their real-life friendship was reportedly a factor in his being cast. He appeared in the 1989 comedy film Three Fugitives. Next, he had a significant role as Hendry William French in Young Guns II, the 1990 sequel to Young Guns, and he also played Captain John Harriman of the USS Enterprise-B in the 1994 film Star Trek Generations, a role that he reprised along with Generations co-star Walter Koenig and other Trek alumni in the fan film Of Gods and Men. He played an annoying tourist named Doug Stephens on an ill-fated bus in the blockbuster Speed. Another supporting role was of the eccentric storm chaser Robert 'Rabbit' Nurick in the 1996 disaster film Twister. From 1990 to 1991, he starred as Chicago ad man Charlie Davis, on ABC's Going Places. He starred as Lenny on the series Daddy's Girls in 1994, which was canceled after three episodes. In 1995, he starred as Dr. Marshall Jones in the series Muscle, From 1996 to 2002, he played Stuart Bondek on the sitcom Spin City. In 2005, he starred as Leo Bloom in the Broadway version of Mel Brooks' The Producers, a role also played by his Ferris Bueller co-star, Matthew Broderick. In 2007, he starred as Dean Bowman in the college fraternity drama Greek. In the 2007 comedy Kickin' It Old Skool, he appears as Dr. Frye, a possible connection to Cameron Frye; he even mentions still trying to pay off an old Ferrari, a reference to Cameron totaling his dad's Ferrari in Ferris Bueller's Day Off. In 2008, he played Ghost Dad in the film Ghost Town starring Ricky Gervais, and appeared in the M. Night Shyamalan film The Happening. In 2009, he played Mr. C in the film I Love You, Beth Cooper; and he filmed the medical drama Extraordinary Measures with star Harrison Ford. In 2010, he starred as Charlie Morse on the series Persons Unknown. In 2012, he had a recurring role in ABC Family's Bunheads as Hubbell Flowers, the husband to Sutton Foster's character, Michelle. In fall 2016, he starred on The Exorcist as Henry Rance, the husband of Angela Rance (Geena Davis), better known as the adult Regan MacNeil, the tortured girl (played by Linda Blair) who is possessed by a demon in the 1973 hit film The Exorcist. Starting in 2018, he co-starred as Connor Roy in the Emmy-award winning HBO series Succession. He co-starred as Mr. Burgess in the film Sierra Burgess is a Loser (20018). He also appeared in the films War Machine (2017), Gringo (2018), My Dinner with Hervé (2018), and Freaky (2020).

Alan Ruck plays as Connor Roy in Succession.
Alan Ruck is the top #7 member of the cast and appears in 29 episodes.

Peter Friedman (born April 24, 1949) is an American stage, screen, and television actor. Born in New York City, Friedman graduated from Hofstra University before making his Broadway debut in The Great God Brown in 1972. Additional theatre credits include The Visit (1973), Piaf and A Soldier's Play (both 1981), The Heidi Chronicles (1989), Ragtime (1998), and Twelve Angry Men (2004). He has been nominated for the Tony Award for Best Performance by a Leading Actor in a Musical and the Drama Desk Award for Outstanding Actor in a Musical, Outstanding Actor in a Play, and Outstanding Featured Actor in a Play. On television, Friedman starred as patriarch George Silver in Brooklyn Bridge, has made numerous guest appearances in such series as Miami Vice, Law & Order, NYPD Blue, Without a Trace, Ghost Whisperer, and Damages, and had a featured role in Perfect Murder, Perfect Town: JonBenét and the City of Boulder. Friedman's many feature film credits include Prince of the City, Daniel, The Seventh Sign, Single White Female, I'm Not Rappaport, I Shot Andy Warhol, Safe, Freedomland, The Savages, and I'm Not There. Friedman married actress Joan Allen in 1990. The couple divorced in 2002. They have one daughter, Sadie, born in March 1994. ​From Wikipedia, the free encyclopedia

Peter Friedman plays as Frank Vernon in Succession.
Peter Friedman is the top #8 member of the cast and appears in 29 episodes.

Hiam Abbass (born November 30, 1960), also known as Hiam Abbas or Hiyam Abbas, is a Palestinian actress. She is known for her roles in the films Satin Rouge (2002), Haifa (1996), Paradise Now (2005), The Syrian Bride (2004), Free Zone (2005), Dawn of the World (2008), The Visitor (2008), Lemon Tree (2008), and Amreeka (2009). She had a small role in Steven Spielberg's Munich, a film depicting the response to the Munich Massacre, where she also served as a dialect and acting consultant. She directed two short films, Le Pain (2001), La Danse éternelle (2004). She portrays humanitarian Hind al-Husseini in Julian Schnabel's film Miral (2010), based on the life of Husseini and her orphanage.

Hiam Abbass plays as Marcia Roy in Succession.
Hiam Abbass is the top #9 member of the cast and appears in 20 episodes.

J. Smith-Cameron is an American actress best known for her supporting roles as Janet Talbot on the television series Rectify and Gerri Kellman on Succession.

J. Smith-Cameron plays as Gerri Kellman in Succession.
J. Smith-Cameron is the top #10 member of the cast and appears in 19 episodes.