*Trigger warnings: blackmail, war crimes, nazis. Also, this will be very extensive: warning for a long post. *
Reinhard Heydrich was a high ranking nazi party member, war criminal and spy master. He ran the SD (The Intelligence Service of the SS), the RSHA (Reich Security Main Office - the organization that encompassed the SD, Kripo and Gestapo). He also commanded the Einsatzengruppen (mobile killing squads) units as a whole. His SS ranking was Obbergruppenfuhrer, the SS equivalent of the rank 'General.' All that combined with his notoriety and fear of him as well as him being second in command to Heinrich Himmler (The Reichsfuhrer-SS; head of the SS), made him someone who people didn't want to make an enemy of.
He had a few habits, including reading paperwork from a briefcase while explaining orders, taking and joining subordinates and superiors out to luncheons and dinners. He also had a habit of visiting brothels in Berlin.
Reinhard Heydrich mostly fit the archetypical 'aryan' as he was 6'4, blonde and blue-eyed; however, he had a bird chest and oddly wide hips. His eyes were sharp and glimmered when he thought he had the upper hand in a situation. His forehead was large, and his face was slightly asymmetrical.
He had many hobbies including fencing, boxing, hunting, violin playing and horse riding (which he apparently viewed with superstition, until Lina Heydrich continued to press the issue).
The following is photos of him doing his hobbies
Here's an extract about his hunting habit.
Reinhard Heydrich had his own plane which he used to get to the Wansee Conference and fly recreationally. It's believed he went out to fly as a member of the Luftwaffe, but it's also believed he didn't have the time for such. Still, there was an incident that put him at risk. He flew his plane and crashed in Russian territory. He had to get rescued after his plane below was damaged in the crash.
He a nasally voice and goat-like laugh.
Reinhard Heydrich got involved with Brothels on more than one occasion. This didn't just involve attending; it involved organizing the kidnapping of a well-known Madam of a wealthy brothel and coerced her into letting him set up microphones and getting secrets through pillow talk. He also had one 'investigation', where he went off with one of the girls and ordered his SD men to shut off the microphones.
He had a fantastic memory and innate curiosity which led to him inquiring how others knew someone and asking about implied conversations he found suspicious, making them tell him everything before Heydrich let them go.
He very rarely went to the cells in the RSHA building and looked upon communists and prisoners with disdain. The only other time he interrogated someone was a man called Kerstein who was Heinrich Himmler's doctor who was trying to convince Heinrich Himmler to let Jews go as hostages from the camps. s
Reinhard Heydrich had a specific way of dealing with reports which were in the context of the SD (counter-intelligence) and nefarious orders in the context of the SS hierarchy. When reporting information to Hitler, he'd do it in a military like fashion. When accepting reports, it was often during dinners (with Walter Schellenberg) or in his office in the RSHA building. He often gave orders at his hunting lodge. The nefarious orders he gave included, but were not limited to the following:
-Ordering his SD men to steal a file from the Abwehr (an opposing spy network in Germany)
-Ordering Walter Schellenberg to track down Otto Strasser and poison him with a liquid poison that burns the skin of those it comes too close to.
-Ordering the Einsatzengruppen to round up and shoot innocent Jews and Czechs when following the German army into a country Hitler was taking over.
He had many rumors about him; that he was secretly Jewish, that he had to leave the navy because he slept with and promised marriage to another women who wasn't his fiancé at the time.
Reinhard Heydrich was manipulative as he pinned his subordinates and superiors against each other. He loved to play cat and mouse games with his subordinates and spent several weeks-months trying to entrap Walter Schellenberg into confessing he was sleeping with Lina Heydrich (his wife). He even ordered over telephone that Walter Schellenberg would have dinner 'in mufti' with him and then 'go places' after playing cards with both Walter and Lina while playing the loyal, devoted husband. He even blackmailed Heinrich Mueller, the head of the Gestapo who was also his subordinate by two rows down. He did it apparently because Heinrich Mueller was anti monarchy and anti nazi.
Reinhard Heydrich had a cruel streak. There was instance where Greggor Strasser got shot in the back of the neck in an SD cell and Heydrich called him 'swine' while he bled out for an hour. He also let go of an officer who disobeyed one single order to head the fake an attack from Poland and justify Germany's aggression. Heydrich also created the concentration camp system and 'with cynical joy' forced Jews to have Jewish councils to govern their own in the ghettos.
Reinhard Heydrich was lecherous. Besides what else has been mentioned, he some 'lecherous things' to Walter Schellenberg while they were out for dinner together. This was during Heydrich's attempts to entrap him.
Reinhard Heydrich was also quite intelligent. A German General and Walter Schellenberg believed this. He was also politically savvy.
Finally, Reinhard Heydrich was apparently a fun drunk and saved Walter Schellenberg from getting beer thrown on him by a Russian.
Reinhard Heydrich treated his subordinates as such and was quick to criticize them. He didn't have any protege's or 'students' nor did he give anyone the sense they could be friends. He showed practical concern once when making sure Walter Schellenberg didn't get taken by the Americans while on an undercover mission. If they said anything that would possibly put them at risk or embarrass himself, he wouldn't hesitate to kick their leg under the table. He also liked to play cat and mouse games with them, in terms of trickery of deception - he never rested until a subordinate was in his power, 'to be struck down at the slightest sign of escape'. He sewed conflict with those above him and beneath him to distract from his growing power.
