Sola Dosis Facit Venemum

Summary

[The Dose Makes the Poison] The mysterious death of a hotel maid draws Harrow into a dark world of espionage and assassination, while Nichols edges closer to catching Harrow's wayward son, James.

Guest stars

• Rupert Reid as Derek Moore
• Liliya May as Yelena Grishenko
• Stephen Lopez as Carl Echeverria
• Shanyn Asmar as Emcee
• Vincent B. Gorce as Ruslan
• Kyryl Koltsov as Yelena's bodyguard
• Howard Searchfield as Russian agent #1
• Adam Pierzchalski as Russian agent #2
• Daniel Nelson as Hotel Security #1
• Hugh Parker as Doug Hinton