5.6
/10
Dr. Lydia Ralston is a fictional character portrayed by Kathleen Mary Carthy in the TV series The Blacklist.
In the first episode they appeared in, titled The Apothecary (No. 59) (season 4), they were 51 years old.
They appear in 1 episodes out of a total of 218 aired

Dr. Lydia Ralston

by Kathleen Mary Carthy

character

Episodes1

  • 8.5
    /10

    The Apothecary (No. 59)
    episode S4.E15 february 2017
    Red has to figure out who betrayed him when he's poisoned; Liz and the task force look for the toxin's designer to save Red's life.