Rachael Elaine Harris (born January 12, 1968) is an American actress and comedian. She is known for her numerous television roles, such as starring as Dr. Linda Martin on Lucifer and as a guest star on TV shows such as Sister, Sister, Reno 911!, New Girl, Suits and The Good Wife. Description above from the Wikipedia article Rachael Harris, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Rachael Harris plays as Self - Correspondent in Lucifer.
Rachael Harris is the top #1 member of the cast and appears in 2823 episodes.

Tom Ellis is a Welsh actor, best known for playing Dr. Oliver Cousins in the BBC soap opera "EastEnders" and Detective Sergeant Sam Speed in a "Life on Mars" parody in the "The Catherine Tate Show. He was also Sam in the BBC comedy "Pulling", and plays Gary in Miranda Hart's BBC2 comedy "Miranda".  Other notable roles include Justyn in Channel 4's "No Angels" and Thomas Milligan in the series three finale of British science-fiction television programme "Doctor Who". He also starred in the ITV comedy drama "Monday Monday" during July and August 2009 alongside Fay Ripley. Ellis is married to actress Tamzin Outhwaite. The family moved to England and Ellis attended High Storrs School in Sheffield and was a French Horn player in the City of Sheffield Youth Orchestra. He was also a huge Sheffield Wednesday fan, but now supports Arsenal.

Tom Ellis plays as Lucifer Morningstar in Lucifer.
Tom Ellis is the top #2 member of the cast and appears in 75 episodes.

Born and raised in Cape Town, South Africa, Lesley-Ann Brandt has shot to stardom rapidly in New Zealand. She immigrated to Auckland with her parents and younger brother in 1999. Her unusual path to acting has seen her go from IT Recruitment Consultant to landing the lead role in the hit comedy series 'Diplomatic Immunity', starring alongside Craig Parker (of Spartacus, Lord of the Rings and Underworld: Rise of the Lycans), quickly moving her into the hearts of the nation. Lesley-Ann started her career as a model, booking prestigious national and international campaigns as well as big international TV commercials. She very soon drew the attention of Casting Directors who encouraged her to pursue acting. Whilst working full time, Brandt trained with various New Zealand and internationally based acting coaches. She has most recently appeared in guest roles on New Zealand's series 'Shortland Street', 'This Is Not My Life' and her current role as 'Naevia' in the Starz series 'Spartacus: Blood and Sand'. Lesley-Ann has just completed filming her first feature film 'Hopes and Dreams’. She is fluent in Afrikaans, and has in the past played competitive and social hockey. Brandt is currently based in Los Angeles.

Lesley-Ann Brandt plays as Mazikeen "Maze" in Lucifer.
Lesley-Ann Brandt is the top #3 member of the cast and appears in 75 episodes.

Lauren Christine German is an American actress. She had her first major role in the 2002 romantic drama film A Walk to Remember, followed by roles in the horror films The Texas Chainsaw Massacre and Hostel: Part II. Wikipedia

Lauren German plays as Leslie Shay in Lucifer.
Lauren German is the top #4 member of the cast and appears in 46 episodes.

Scarlett Estevez plays as Gwen Flores in Lucifer.
Scarlett Estevez is the top #5 member of the cast and appears in 30 episodes.

Kevin Alejandro is an American actor.

Kevin Alejandro plays as Manny Perez in Lucifer.
Kevin Alejandro is the top #6 member of the cast and appears in 14 episodes.

Tricia Janine Helfer (born April 11, 1974) is a Canadian actress and former model, best known for her role as Number Six in the re-imagined Battlestar Galactica miniseries and television series, her role as "Carla" on Burn Notice, Dark Blue as FBI Special Agent Alex Rice,  and for hosting the first season of Canada's Next Top Model. She became actively involved in different charity events, from animal rescue  to the oil spill in the Gulf. She also posed nude in Playboy in 2007.

Tricia Helfer plays as Dracula in Lucifer.
Tricia Helfer is the top #7 member of the cast and appears in 13 episodes.

Tom Welling is an American actor, director, producer, and former model, best known for his portrayal of Clark Kent in the CW series Smallville.

Tom Welling plays as Vincent Corbo in Lucifer.
Tom Welling is the top #8 member of the cast and appears in 10 episodes.

David Bryan "D.B." Woodside (born July 25, 1969) is an American actor. He is perhaps best known for his portrayal of White House Chief of Staff (and later President) Wayne Palmer on the FOX action/drama series 24. Additionally, he is noted for his roles as bass singer Melvin Franklin in the NBC miniseries The Temptations, and as Robin Wood on the WB/UPN series Buffy the Vampire Slayer.

D.B. Woodside plays as Erik Monks in Lucifer.
D.B. Woodside is the top #9 member of the cast and appears in 10 episodes.

Aimee Sandimés Garcia López de Ordóñez (born November 28, 1978) is an American actress. She is known for her television roles as Veronica Palmero on the ABC sitcom George Lopez, Yvonne Sanchez on the CBS period drama Vegas, Jamie Batista on the Showtime drama Dexter and Ella Lopez on the Fox-turned-Netflix drama Lucifer. Description above from the Wikipedia article Aimee Garcia, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Aimee Garcia plays as Jodie Ramirez-Tarleton (voice) in Lucifer.
Aimee Garcia is the top #10 member of the cast and appears in 10 episodes.