Question: What was the profession of the character Thomas Kretschmann portrayed in "Downfall"?

Context paragraphs:
Eichmann (film): Eichmann is a biographical film detailing the interrogation of Adolf Eichmann.  Directed by Robert Young, the film stars Thomas Kretschmann as Eichmann and Troy Garity as Eichmann's Israeli interrogator, Avner Less.  It was first released in Brazil in September 2007, and was released in the United States in October 2010.

The Warrior's Heart: The Warrior's Heart (Norwegian: "Krigerens hjerte" ) is a 1992 Norwegian film, directed by Leidulv Risan and starring Anneke von der Lippe, Peter Snickars, Thomas Kretschmann, Bjørn Sundquist and Iren Reppen.  It was screened out of competition at the 1992 Cannes Film Festival.  The film was selected as the Norwegian entry for the Best Foreign Language Film at the 65th Academy Awards, but was not accepted as a nominee.

Open Grave: Open Grave is a 2013 post-apocalyptic zombie-like suspense film directed by Gonzalo López-Gallego, starring Sharlto Copley as Jonah Cooke and Thomas Kretschmann, Joseph Morgan, Erin Richards, Josie Ho, in supporting roles.  Josie Ho plays the character of a mute.  All the characters excluding the mute suffer from amnesia and can't remember anything from their lives.  The story follows them trying to figure out their identities and their past while evading zombie-like humans affected by rage virus and also their struggle to escape the forest they are stuck in.

A Taxi Driver: A Taxi Driver () is a 2017 South Korean historical action drama film directed by Jang Hoon, with Song Kang-ho starring in the title role, alongside Thomas Kretschmann.  The film was released on August 2, 2017 in South Korea.  It was selected as the South Korean entry for the Best Foreign Language Film at the 90th Academy Awards.

Dracula 3D: Dracula 3D is a 2012 vampire horror film co-written and directed by Dario Argento and starring Thomas Kretschmann, Rutger Hauer, Marta Gastini, and Unax Ugalde.  An Italian-Spanish-French co-production, the film is Argento's first 3D film.  While nominally a loose adaptation of Bram Stoker's original novel, it also carries over many stylistic elements from the 1958 Hammer Films adaptation, "Horror of Dracula".  Kretschmann took the role of Dracula; he later played Abraham van Helsing in the Budapest-shot television series Dracula (TV series).

Immortal (2004 film): Immortal (French: Immortel, ad vitam) is a 2004 English language French live-action and animated science fiction film co-written and directed by Enki Bilal and starring Linda Hardy, Thomas Kretschmann and Charlotte Rampling.  It is loosely based upon Bilal's comic book "La Foire aux immortels" ("The Carnival of Immortals").

The Pianist (soundtrack): The Pianist: Music from the Motion Picture is the original soundtrack, on the Sony Classical label, of the 2002 Academy Award-winning and Golden Globe-nominated film "The Pianist" starring Adrien Brody (who won the Academy Award for Best Actor for his role as "Władysław Szpilman" in this film), Thomas Kretschmann and Frank Finlay.  The Chopin pieces were played by Polish pianist Janusz Olejniczak and the original score piece was composed by Wojciech Kilar.  The music in the actual movie also includes pieces by Beethoven and Bach.

Hermann Fegelein: Hans Otto Georg Hermann Fegelein (30 October 1906 – 28 April 1945) was a high-ranking commander in the Waffen-SS of Nazi Germany.  He was a member of Adolf Hitler's entourage and brother-in-law to Eva Braun through his marriage to her sister, Gretl.

Frankenstein (2004 film): Frankenstein is a 2004 made-for-television USA Network production starring Thomas Kretschmann as Victor Helios (supposedly the man that the fictional character Victor Frankenstein was based on) and Vincent Pérez as his creature.  It was produced by Martin Scorsese and based on Dean Koontz's version of "Frankenstein".  The film was originally intended as the pilot for an ongoing series, but this was not successful.  Koontz later developed the concept into a series of five novels: "Frankenstein: Prodigal Son", "Frankenstein: City of Night", "Frankenstein: Dead and Alive", "Frankenstein: Lost Souls", and "Frankenstein: The Dead Town".

Thomas Kretschmann: Thomas Kretschmann (] ; born 8 September 1962) is a German actor.  He played Lieutenant Hans von Witzland in the 1993 film "Stalingrad", Hauptmann Peter Kahn in the 2013 film "Stalingrad", Hauptmann Wilm Hosenfeld in "The Pianist", Hermann Fegelein in "Downfall", Major Otto Remer in the 2008 film "Valkyrie", and Captain Engelhorn in the 2005 remake of "King Kong", and voiced Professor Z in "Cars 2".  He appeared as Baron Strucker in Marvel Studios' "" and "".

Supporting paragraphs: Thomas Kretschmann Hermann Fegelein
Answer: high-ranking commander in the Waffen-SS of Nazi Germany