Chasing Ghosts

Summary

A surprising discovery leaves Alex reeling as he tries to adjust his theories in light of what he found at Philadelphia City Hall. Meanwhile, the Rezident questions Katya and Mark's dedication and Natalie discovers the dangers of Black Dagger.

Guest stars

• Floriana Lima as Michelle Prado
• David Vadim as Arkady Isakof
• Fred Thompson as FBI Director
• Randall Batinkoff as Steven Gallagher
• Billy Calder as Richie Diberno
• Roman Roytberg as Roman
• Ivan Goris as Undercover Cop
• Howard W. Overshown
• Danny Plaza as Philadelphia Police Officer
• Hannah Patelunas as Hayley