Who Plays Alex in Tell Me Lies Season 3?
Alex in Tell Me Lies season 3 is played by Costa D’Angelo, an Australian actor making his first major U.S. series regular appearance with this role.
Casting reports describe him as one of the key new additions for the new batch of episodes, slotted right into the messiest part of the Baird College ecosystem alongside Lucy, Stephen, Bree, and the rest of the returning core.
His name showing up in the main cast list, not just as a guest, is a good sign that Alex isn’t some throwaway campus extra; he’s built to stir the pot.
Who is Alex in Tell Me Lies?
Alex in Tell Me Lies season 3 is a psychology graduate student and part‑time drug dealer at Baird who has a complicated past with Bree.
Official character descriptions paint him as aloof and borderline rude when he first appears, the kind of guy who looks like he’s permanently halfway out the door, but the more time the camera spends on him, the more it becomes clear there are hidden layers and a lot of unresolved history.
That “complicated past with Bree” is where the character really plugs into the existing story. Bree has already been through enough emotional damage for two people, and now season 3 drops in someone who grew up with her, knows old secrets, and also happens to be involved in the low‑level campus drug trade.
For a show that thrives on blurred consent, power imbalances and bad decisions made at 2 a.m., putting a grad‑student dealer with emotional baggage right in the group’s orbit is very on brand.
Tell Me Lies Cast
The Tell Me Lies season 3 cast is anchored, as always, by Grace Van Patten as Lucy Albright and Jackson White as Stephen DeMarco, whose on‑off relationship is still the center of gravity for everything else happening at Baird.
Around them, the show brings back Spencer House (Wrigley), Catherine Missal (Bree), Sonia Mena (Pippa), Branden Cook (Evan), Alicia Crowder (Diana), Natalee Linez (Lydia), and Gabriella Pession (Marianne), with Tom Ellis also appearing again as Oliver in the latest cast updates.
Season 3 then drops in new faces, most notably Iris Apatow as Amanda, a bubbly‑seeming freshman hiding secrets, and Costa D’Angelo as Alex, the psychology grad student whose side hustle and connection to Bree pull him straight into the group’s chaos.
It is a classic third‑season move: the core ensemble stays intact so fans still get Lucy/Stephen drama, but the newcomers arrive with their own agendas, giving writers fresh ways to twist the knife.
About Tell Me Lies
Tell Me Lies is a drama series following Lucy and Stephen over nearly a decade, starting with their first meeting at Baird College and tracing how one toxic relationship warps an entire friend group.
Season 3 picks up with them back together for the spring semester, insisting they’ll be different this time, even as past betrayals, a campus controversy, and the fallout from previous years keep dragging them into the same old patterns.
What keeps the show interesting is how it uses new characters like Alex to poke at existing fractures instead of resetting the board. A psychology grad student who supplies drugs and shares old wounds with Bree is not just there for colour; he’s a reminder that in this world, nobody gets a clean break from their past, they just meet it again in a different hallway.
For viewers asking, “who plays Alex in Tell Me Lies season 3?” the answer ends up being more than just a name – Costa D’Angelo is the actor, but Alex is the latest fuse wired into an already unstable circuit.
Disclaimer
Details about the Tell Me Lies season 3 cast, the character Alex, and actor Costa D’Angelo are based on currently available entertainment coverage and production information. Casting, character descriptions, and storylines may evolve with new episodes or announcements, so viewers should check the latest official updates for any changes.
