“Everyone’s just on their toes in this whole episode,” Juliana Aidén Martinez , who joins FBI as a series regular and debuts as Scola’s ( John Boyd ) new partner in the Monday, October 27, installment, says.

Their first case together is a complicated one: A young man is found beaten to death, and they hit a roadblock when their case intersects with a DEA operation. Meanwhile, there’s a potential shake-up at the JOC. Below, Juliana Aidén Martinez introduces Eva Ramos, teases her and Scola’s partnership, and more.

We know she’s very qualified. She has her time as a prosecutor, then she was with the FBI and violent crime and narcotics. What else should we know about her?

Juliana Aidén Martinez: I think Eva is someone that is extremely clever. She’s witty. She moves through the

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