Castle in the Sky[2] is the tenth episode of ‘The Alienist.’ It premiered on Monday, March 26, 2018, at 9 p.m. ET/PT across TNT platforms.


Kreizler (Daniel Brühl) confronts the demons of his past. Moore (Luke Evans) tells Sara (Dakota Fanning) the truth. Connor (David Wilmot) takes matters into his own hands. The team closes in on the killer as time is running out. [2]

Cast Edit

Starring Edit

Guest StarringEdit


  • Tim Barlow as Mr. Kriezler
  • Billy Barratt as Ted Roosevelt Jr.
  • Rupert Turnbull as Kermit Roosevelt
  • Art Burnett as Thomas Connor
  • Nicola Stephenson as Maebh Connor
  • Ben Lamb as Jack Astor
  • Kata Pálfi as Nurse
  • Zsolt Páll as Bath House Cop
  • Simone Alberghini as Don Giovanni (Opera Singer)
  • Jan Stáva as Leporello (Opera Singer)
  • Nino Surguladze as Donna Elvira (Opera Singer)
  • Pavel Svingr as Commendatore (Opera Singer)
  • Robert Gill as Hatter
  • Simon Harvey as Bath House Caretaker
  • Edward Saunders as Paresis Hall Boy
  • Harvey Weedon as New Paresis Hall Boy
  • Sonny Charlton as New Paresis Hall Boy #3
  • Anson Boon as New Paresis Hall Boy #5


John Moore: "I've looked from everywhere. Please, help me save this boy."
Sara Howard: "The Feast of John the Baptist. It's six days from now."
John Moore: "We don't have much time."
Dr. Kreizler: "He's changing. The ritual is changing."
Dr. Kreizler: "Now, John. Let's go!"
Joseph: "Help! Help me!"
John Moore: "Here’s to you, here’s to me. May we never disagree. But if we do, hell with you. Here’s to me."
Dr. Kreizler: "We can either let it haunt us for the rest of our lives, or we can accept it and use the memory of our pain to help others."


Photo by Kata Vermes. [Courtesy of TNT Pressroom]

Photo by Kata Vermes. [Courtesy of TNT Pressroom]




  • The episode covers from Chapter Forty-two to the last chapter of Part III of Caleb Carr's novel, with some changes and additional original scenes.


  1. ‘The Alienist’ Crime Report
  2. 2.0 2.1 ‘The Alienist’ Episode Synopses on Turner Pressroom