The Copenhagen Test cast features Simu Liu, Melissa Barrera and Sinclair Daniel. This info article contains minor spoilers and character details for Thomas Brandon’s Peacock series. Check out more cast guides in Vague Visages’ Know the Cast category.

The Copenhagen Test centers on an American intelligence agent. When Alexander Hale gets promoted to a new position, he learns that someone hacked his brain. The narrative follows the main protagonist as he tries to prove his loyalty while manipulating his attacker with faux behavior. Here’s every actor and character in The Copenhagen Test.

Read More at VV — Know the Cast: ‘All Her Fault’

The Copenhagen Test Cast: Simu Liu as Alexander Hale

Character Profile: An American intelligence agent. He is a military veteran who earns a highly coveted position at “The Orphanage.” Alexander tries to prove that he’s not a traitor upon learning that his brain was hacked.

Liu’s Resume: Paul Xie in Blood and Water (2015-16), Jung in Kim’s Convenience (2016-2021), Xu Shang-Chi/Shaun in Shang-Chi and the Legend of the Ten Rings (2021), Ken in Barbie (2023), Harlan Shepherd in Atlas (2024)

Read More at VV — Know the Cast: ‘Long Bright River’

The Copenhagen Test Cast: Melissa Barrera as Michelle

Character Profile: An American intelligence agent. She develops a faux romance with Alexander. Michelle tries to please her bosses in the hopes of having her record cleared of past offenses.

Barrera’s Resume: Lyn in Vida (2018-20), Vanessa in In the Heights (2021), Sam Carpenter in Scream (2022), Liv Rivera in Keep Breathing (2022), Joey in Abigail (2024)

Read More at VV — Know the Cast: ‘The Day of the Jackal’

The Copenhagen Test Cast: Sinclair Daniel as Parker

Character Profile: A predictive analyst at The Orphanage. She is a Yale University dropout who keeps a close eye on Alexander and creates faux narratives about his life. Parker tries to understand the big picture while investigating an unidentified hacker.

Daniel’s Resume: Mia Costello in Madame Secretary (2019), Ms. Farrow in The Good Fight (2021), Clara Williams in Bull (2021), Chris Winslow in Insidious: The Red Door (2023), Nella Rogers in The Other Black Girl (2023)

Read More at VV — Know the Cast: ‘Teacup’

The Copenhagen Test Cast: Brian d’Arcy James as Peter Moira

Character Profile: Parker’s boss at The Orphanage. He orchestrates a plan involving Alexander’s brain hack. Peter tries to learn the identity of a possible mole.

James’ Resume: Matt Carroll in Spotlight (2015), Victor LeConte in Evil (2021-22), Officer Krupke in West Side Story (2021), Bruce in Dear Edward (2023), Dr. Lydell in Pain Hustlers (2023)

Read More at VV — Know the Cast: ‘Hysteria!’

The Copenhagen Test Cast: Mark O’Brien as Cobb

Character Profile: Alexander’s colleague. He is an analyst and Princeton University graduate who gets promoted to The Orphanage. Cobb learns that he’s been manipulated by a relative.

O’Brien’s Resume: Des Courtney in Republic of Doyle (2010-14), Tom Rendon in Halt and Catch Fire (2015-17), Captain Marks in Arrival (2016), Jimmy Ryan in City on a Hill (2019-21), Alex in Ready or Not (2019)

Read More at VV — Know the Cast: ‘Fight Night: The Million Dollar Heist’

The Copenhagen Test Cast: Kathleen Chalfant as St. George

Character Profile: The founder of The Orphanage. She is an espionage legend who keeps a low profile. St. George gets targeted by the individual who hacked Alexander’s brain.

Chalfant’s Resume: Casitas Madres Receptionist in Junior (1994), Pam Frailes in Duplicity (2009), Margaret Butler in The Affair (2014-19), Agnes in Old (2021), Ruth in Familiar Touch (2024)

Read More at VV — Know the Cast & Characters: ‘Poker Face’

The Copenhagen Test cast also includes:

• Sara Amini as Ellie
• Marnie McPhail as Frances
• Saul Rubinek as Victor Simonek
• Adam Godley as Schiff
• Adina Porter as Marlowe
• Anthony Jhade as Remy
• Hannah Cruz as Rachel Kasperian
• Oscar Hsu as Preston Hale
• Lauren Tom as Helen Hale/Alexander’s Mother
• Chad Donella as Saul
• Ayesha Mansur Gonsalves as Eliza Amin
• Caro Coltman as Fake St. George
• Ashley Edner as Letty
• Nahanni Johnstone as Ilana Lexman
• Christopher John Blue as Hugo Klovach

Q.V. Hough (@QVHough) is Vague Visages’ founding editor.