Guest Stars Jonno Davies as Tobias Henry Hunter Hall as Cheeks Johnson Julissa Bermudez as Maria De La Ruiz Ebony Obsidian as Carol Lockhart Caleb Emery as Arthur "Bootyhole" McGuigan Jason Kravits as Rabbi Grossman Tramell Tillman as Detective Sommers John Hans Tester as Karl Holstedder Jon Collin Barclay as Young Holstedder Kathryn Kates as Hilda Hoffman Jill Larson as Frannie Fischer Co Starring Mary Jo McConnell as Una Ronald Woodhead as Lukas Jackson Mattek as Alexander Krisztina Legerszki as Auschwitz Flute Player Krisztián Csákvári as Humming Prisoner #1 Aidan Peter Hart as Singing Prisoner #1 Natalie Jacobs as Bess Sommers Orsolya Gazdag-Kötél as Auschwitz Clarinetist Péter Jankovics as Auschwitz Violinist C.L. Simpson as Arlene Sommers Szofi Berki as Humming Prisoner #2 Tricia Paoluccio as Mother Bence Brasch as Nazi SS #2 Dean Kyburz as Singing Prisoner #4 Austin Jennings Boykin as Singing Prisoner #2 Ayla Schwartz as Bat Mitzvah Girl Easton Noble as Young Son Barry D. Godin as Senator O'Heir Zsolt Vicei as Auschwitz Conductor Péter Fancsikai as Nazi SS #1 Miklós Kapácsy as Nazi SS #3 Florin Penișoară as Singing Prisoner #5 Kevin Guzewich as Singing Prisoner #3 Esther Chen as Stewardess Cherie Mendez as Jeanine Frist Richard Clodfelter as Otto Kuhn Viktor Dénes as Auschwitz Tuba Player