Harry Lloyd (born 17 November 1983) is an English actor. He played Will Scarlet in the first two seasons of the BBC drama Robin Hood which began in 2006. Description above from the Wikipedia article Harry Lloyd, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Harry Lloyd plays as Henry Gibson in Arcane.
Harry Lloyd is the top #1 member of the cast and appears in 24 episodes.

Kevin Alejandro is an American actor.

Kevin Alejandro plays as Manny Perez in Arcane.
Kevin Alejandro is the top #2 member of the cast and appears in 14 episodes.

Jason Spisak was born on August 29, 1973 in Wilkes-Barre, Pennsylvania, USA. He is an actor and producer, known for Young Justice (2010), Time Lapse (2014) and Everything Must Go (2010). He is married to Amber Lynn Myers. They have two children.

Jason Spisak plays as Hooper (voice) in Arcane.
Jason Spisak is the top #3 member of the cast and appears in 12 episodes.

Olatokunbo Susan Olasobunmi Abeke "Toks" Olagundoye (born 16 September 1975) is a Nigerian actress. She is known for her role as Hayley Shipton in Castle, Jackie Joyner-Kersee in the ABC TV sitcom The Neighbors, and Mel Medarda in the animated Netflix series Arcane. Description above from the Wikipedia article Toks Olagundoye, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Toks Olagundoye plays as Olivia in Arcane.
Toks Olagundoye is the top #4 member of the cast and appears in 9 episodes.

​Katie Liu Leung (born 8 August 1987) is a Scottish actress. She was born in Scotland to Peter and Kar Wai Li Leung, who are now divorced. She lives at home with her father, two brothers and one sister. She attended one of Scotland's most prestigious private schools, Hamilton College. Katie's father saw an advertisement for a casting call and suggested Katie try out. Katie objected when she saw the length of the line at the casting auditions and said she'd rather go shopping. She waited for a total of 4 hours before she got in. The audition for her only took 5 minutes and the next two weeks, she got called in for a workshop and from then on, she got the part as Cho Chang.

Katie Leung plays as Ash in Arcane.
Katie Leung is the top #5 member of the cast and appears in 8 episodes.

Ella Purnell (born 17 September 1996) is an English actress. She began her career as a child actress on the West End and in the film Never Let Me Go (2010).  Purnell used to attend weekly classes at Sylvia Young Theatre School, studying acting, singing and dance. Description above from Purnell's page on Wikipedia, The Free Encyclopedia

Ella Purnell plays as Lucy MacLean in Arcane.
Ella Purnell is the top #6 member of the cast and appears in 8 episodes.

Hailee Steinfeld (born December 11, 1996) is an American actress, singer and model. She had her breakthrough with the western drama film True Grit (2010), which earned her nominations for the Academy Award, BAFTA Award and the SAG Award for Best Supporting Actress. Steinfeld rose to mainstream prominence for her lead roles in Ender's Game (2013), Romeo & Juliet (2013), Begin Again (2013), and 3 Days to Kill (2014). She received critical acclaim for her roles in the Pitch Perfect film series (2015–2017) and the coming-of-age comedy-drama film The Edge of Seventeen (2016), the latter of which earned her a Golden Globe Award and Critics' Choice Movie Award nomination. Steinfeld subsequently provided the voice of Gwen Stacy / Spider-Woman in the animated film Spider-Man: Into the Spider-Verse (2018), and starred as Charlie Watson in the action film Bumblebee (2018). She currently plays Emily Dickinson in the Apple TV+ comedy-drama series Dickinson (2019–present), and is set to play Kate Bishop / Hawkeye in the upcoming 2021 Disney+ series Hawkeye, set in the Marvel Cinematic Universe. Steinfeld gained recognition in music after performing "Flashlight" in Pitch Perfect 2 (2015). She signed with Republic Records soon after and released her debut single, "Love Myself", followed by her debut extended play Haiz (2015). She went on to release a series of singles, including the collaboration "Starving", which peaked at number 12 on the Billboard Hot 100 chart, and "Let Me Go" with Alesso, Florida Georgia Line and Watt, which peaked at number two on the US Dance songs chart. In May 2020, she released her second extended play, Half Written Story, supported by the singles "Wrong Direction" and "I Love You's". Description above from the Wikipedia articleHailee Steinfeld, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Hailee Steinfeld plays as Vi (voice) in Arcane.
Hailee Steinfeld is the top #7 member of the cast and appears in 3 episodes.

J. B. Blanc plays as Vander (voice) in Arcane.
J. B. Blanc is the top #8 member of the cast and appears in 3 episodes.