Darby Leigh Stanchfield (5' 7" (1.7 m) born on April 29, 1971 in Kodiak, Alaska, USA, where her father owned a successful commercial fishing business, is an American actress. She received a Masters in Fine Arts from the American Conservatory Theater in San Francisco. Currently married to Joseph Mark Gallegos (2009 - present), and is the niece of legendary Disney Studios animator, Walt Stanchfield, whose work includes major features The Jungle Book (1967), The Aristocats (1970), and Who Framed Roger Rabbit (1988). She is best known for her role as Abby Whelan in the ABC political drama series Scandal. Stanchfield is also known for roles as April Green in the CBS post-apocalyptic drama series Jericho, and as Helen Bishop in the AMC period drama series Mad Men.

Darby Stanchfield plays as Nina Locke in Locke & Key.
Darby Stanchfield is the top #1 member of the cast and appears in 10 episodes.

Emilia Jones (born 23 February 2002) is an English child actress, best known for portraying the young Queen of Years, Merry Gejelh, in the 2013 Doctor Who episode "The Rings of Akhaten"and playing the part of Lottie McLeod in the BBC feature-length film What We Did on Our Holiday. She has also worked in theatre including playing Young Fiona in the original cast of Shrek the Musical at the Theatre Royal, Drury Lane and Flora in a stage adaptation of Henry James's The Turn of the Screw. Jones' acting career began in 2010, aged 8 years old, when she appeared as Jasmine in the film One Day.[1] She also portrayed Alice in the Channel 4 drama Utopia, and later that year played the young Queen of Years Merry Gejelh in the British television series Doctor Who episode "The Rings of Akhaten" (2013). In film, Jones has had small roles in One Day (2011) and Pirates of the Caribbean: On Stranger Tides (2011). Description above from the Wikipedia article Emilia Jones, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Emilia Jones plays as Kinsey Locke in Locke & Key.
Emilia Jones is the top #2 member of the cast and appears in 10 episodes.

Connor Jessup was born in Toronto, Canada. An actor since the age of eleven, he is best known for his role as Ben Mason in TNT's sci-fi series Falling Skies (2011) and as Taylor Blaine in the ABC drama American Crime (2015). Other notable roles include an early stint on the Discovery Kids series The Saddle Club (2001), and acclaimed lead performances in Blackbird (2012) and Closet Monster (2015). Jessup is also active behind the camera, having written and directed several shorts - most recently the ghost drama Boy (2015) - and acted as executive producer on the micro-budget film Amy George (2011).

Connor Jessup plays as Tyler Locke in Locke & Key.
Connor Jessup is the top #3 member of the cast and appears in 10 episodes.

Best known for his breakthrough role in the 2017 remake of Stephen King's It (2017) as the iconic character Georgie. Following his groundbreaking appearance in "It". Scott went on to land a series regular role in the pilot "Locke and Key" also directed by "It" director Andy Muchietti. The talented young actor has previous credits as a guest star in the hit CBS TV series "Criminal Minds" and AMC's sci-fi horror "Fear the Walking Dead". Fans can look out for Jackson starring in the title role in The Prodigy (2019), an Orion Pictures/MGM Nicholas McCarthy thriller alongside Taylor Schilling. Jackson speaks Mandarin Chinese and enjoys playing soccer, baseball and his Cub Scout troupe.

Jackson Robert Scott plays as Bode Locke in Locke & Key.
Jackson Robert Scott is the top #4 member of the cast and appears in 10 episodes.

Laysla De Oliveira (born January 11, 1992, Brazilian descent) is a Canadian actress, dancer, model, and social media personality. She is known for her roles as Dodge in the Netflix series  Locke & Key, Veronica in the drama film Guest of Honour, and Becky DeMuth in the horror film In the Tall Grass.

Laysla De Oliveira plays as Cruz Manuelos in Locke & Key.
Laysla De Oliveira is the top #5 member of the cast and appears in 2 episodes.

Thomas Mitchell Barnet is a Canadian stage, television and film actor based in Toronto.

Thomas Mitchell Barnet plays as Sam Lesser in Locke & Key.
Thomas Mitchell Barnet is the top #6 member of the cast and appears in 0 episodes.