Charlotte "Charlie" Murphy (born 19 April 1988) is an Irish actress. She is best known for playing the lead role of Siobhan Delaney in the hit RTÉ drama Love/Hate for which she won the 2013 Irish Film and Television Award for Best TV Actress, and as Ann Gallagher in the acclaimed BBC One drama Happy Valley. She is currently appearing in the BBC One historical crime drama television series Peaky Blinders.

Charlie Murphy plays as Ann Gallagher in Halo.
Charlie Murphy is the top #1 member of the cast and appears in 12 episodes.

Danny Sapani is a British-Ghanaian actor. He is best known for appearing in Misfits, Doctor Who, Penny Dreadful, The Crown, Star Wars: The Last Jedi and Black Panther.

Danny Sapani plays as Jacob Keyes in Halo.
Danny Sapani is the top #2 member of the cast and appears in 9 episodes.

Pablo Tell Schreiber (born April 26, 1978) is a Canadian actor known for his dramatic stage work and for his portrayal of Nick Sobotka on The Wire and for his Emmy nominated role of George Mendez on Orange Is the New Black. He was nominated for a Tony Award for his performance in Awake and Sing! on Broadway. He also narrated the American Psycho audiobook. He also starred in the HBO series The Brink as Lieutenant Commander Zeke “Z-Pak” Tilson, a Naval pilot who is also a drug dealer, and played a leading role in the Michael Bay film 13 Hours: The Secret Soldiers of Benghazi (2016). He also played William Lewis on Law and Order Special Victims Unit.

Pablo Schreiber plays as Master Chief, John-117 in Halo.
Pablo Schreiber is the top #3 member of the cast and appears in 9 episodes.

Bokeem Woodbine (born April 13, 1973) is an American film and television actor. Description above from the Wikipedia article Bokeem Woodbine, licensed under CC-BY-SA, full list of contributors on Wikipedia

Bokeem Woodbine plays as Soren-066 in Halo.
Bokeem Woodbine is the top #4 member of the cast and appears in 9 episodes.

Natascha McElhone (born 14 December 1969) is an English actress of stage, screen and television, best known for her roles in Ronin, The Truman Show and Solaris. McElhone also plays a leading role in the Showtime series Californication.

Natascha McElhone plays as Dr. Catherine Halsey in Halo.
Natascha McElhone is the top #5 member of the cast and appears in 9 episodes.

Jennifer Lee Taylor is an American voice actress best known for her roles as Cortana in various Halo games as well as the intelligent personal assistant of the same name. She also voices Zoey in Left 4 Dead; Princess Peach, Toad, and Toadette in various Mario games; Salem in RWBY, and Lina, Windranger, Puck and Medusa in Dota 2. From Wikipedia, the free encyclopedia

Jen Taylor plays as Cortana (voice) in Halo.
Jen Taylor is the top #6 member of the cast and appears in 9 episodes.

Yerin Ha plays as Kwan Ha in Halo.
Yerin Ha is the top #7 member of the cast and appears in 9 episodes.

Shabana Azmi is an Indian actress of film, television and theatre. She's an alumna of the Film and Television Institute of India of Pune. After her film debut in 1974 she soon became one of the leading actresses of parallel cinema, an Indian New Wave movement known for its serious content and neo-realism.

Shabana Azmi plays as Margaret Parangosky in Halo.
Shabana Azmi is the top #8 member of the cast and appears in 9 episodes.

Olive Gray plays as Dr. Miranda Keyes in Halo.
Olive Gray is the top #9 member of the cast and appears in 9 episodes.

Kate Kennedy plays as Kai-125 in Halo.
Kate Kennedy is the top #10 member of the cast and appears in 9 episodes.