Julia Chan plays as Herself - Host in Archive 81.
Julia Chan is the top #1 member of the cast and appears in 16 episodes.

Dina Shihabi (Arabic: دينا شهابي‎‎) is a Saudi Arabian actress working in the United States. Dina Shihabi was born in Riyadh, Saudi Arabia, then moved to Dubai when she was six. She started dance classes at age 6, and at 13 she began taking dance lessons from Sharmilla Kamte, a renowned dance teacher at the Dubai Community Theatre and Arts Centre Chaloub Studio, known as the "dancing queen" of the United Arab Emirates. She became a member of her modern professional dance team. Shihabi's schools were Al Mawakeb School, Emirates International School, and Dubai American Academy. At the Dubai American Academy, which she attended from 8th grade to graduation,[citation needed] Shihabi performed in numerous school plays, and was encouraged by her teacher, Nancy Mock, to pursue an Acting career. At age 18, with her father's permission, Dina moved to New York City and began pursuing a career in acting; this became a full-time profession for her in 2010. In 2011, she was accepted at both Juilliard and The graduate Acting Program at NYU Tisch School for the Arts. Although Dina did not complete a 4 year Bachelor's degree (she attended the American Academy of Dramatic Arts, an Acting Conservatory from 2008 to 2010), NYU waived the requirement of a Bachelor's degree and she graduated with her MFA in 2014. She is the first Middle East-born woman to be accepted to both the Juilliard and NYU Graduate Acting programs. Shihabi's native Arabic dialect is a form of Levantine Arabic.

Dina Shihabi plays as Melody Pendras in Archive 81.
Dina Shihabi is the top #2 member of the cast and appears in 8 episodes.

Mamoudou Athie plays as Dan Turner in Archive 81.
Mamoudou Athie is the top #3 member of the cast and appears in 8 episodes.

Evan Jonigkeit is an actor and producer, known for X-Men: Viitorul este trecut (2014), Whiskey Tango Foxtrot (2016) and Easy (2016). He has been married to Zosia Mamet since October 2, 2016.

Evan Jonigkeit plays as Samuel in Archive 81.
Evan Jonigkeit is the top #4 member of the cast and appears in 8 episodes.

Martin Donovan (born August 19, 1957) is an American stage and film actor. He has had a long collaboration with the director Hal Hartley, appearing in many of his films, including Trust (1990), Surviving Desire (1991), Simple Men (1992), Flirt (1993), Amateur (1994), and The Book of Life (1998) (in which he played Jesus). He is best known as Peter Scottson, the DEA agent on Showtime's Weeds. He made his Writing and Directorial debut in 2011 with the film Collaborator, which he stars in with David Morse. Description above from the Wikipedia article Martin Donovan, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Martin Donovan plays as Virgil in Archive 81.
Martin Donovan is the top #5 member of the cast and appears in 8 episodes.

Matt McGorry plays as Mark in Archive 81.
Matt McGorry is the top #6 member of the cast and appears in 8 episodes.

Ariana Neal plays as Jess in Archive 81.
Ariana Neal is the top #7 member of the cast and appears in 8 episodes.