Tracy Ifeachor and David Lim, along with Aaron Diaz, have signed on for the second season of the ABC drama.

Quantico's cast continues to expand ahead of season two.

The ABC drama has added Tracy Ifeachor (The Originals), David Lim (Criminal Minds) and telenovela star Aaron Diaz in major recurring roles, The Hollywood Reporter has learned.

Ifeachor will play Lydia Bates, a highly accomplished actuary with a few twists up her sleeve. The actress, whose other credits include Doctor Who and Crossbones, is repped by NB Management, United Agents in London, APA in the U.S. and Nelson Davis LLP.

Lim is set as Sebastian Chen, a focused and confident future agent. The actor, who is repped by Innovative Artists and Luber Roklin Entertainment, also has appeared on Supergirl and 90210.

Diaz will portray León Velez, a thrill-seeking photojournalist with no home or life outside his backpack. A Mexican telenovela star, Diaz most recently starred in the Telemundo production Tierra de Reyes and made his American TV debut on another ABC series, Pan Am. He is repped by CAA and ECamp Talent.

The trio are just the latest to join Quantico's expanding season-two cast. Blair Underwood, Looking grad Russell Tovey and South African actress Pearl Thusi have joined as series regulars.

Underwood will play Owen Hall, an intelligent and inspirational CIA officer every fledgling operative wishes he or she could learn from. Tovey is set as Harry Doyle, a mysterious character described as part Thomas Crown, part grown-up Artful Dodger. Thusi will portray Dayana Mampasi, a driven, disciplined, type-A lawyer working at her parents' Boston firm who struggles to fit in.

Quantico is set to return Sunday, Sept. 25, at 10 p.m. ET/PT on ABC.