Eren Kruger (Anime)

Kruger (クルーガー) is an Eldian spy posing as a Marleyan officer in the Marley Public Security. He founded the Restorationists, and uses the pseudonym the Owl (フクロウ) to communicate. Secretly, he possesses the power of the Titan.

Human form
Kruger is a fairly large, well-built, older man. He has shaggy dirty blond hair which he keeps combed to the side. Kruger has a very slender face and pronounced cheekbones, and he was seen wearing the standard uniform for Marleyan soldiers and officers, although he only wears his uniform's hat when he is facing civilians.

Titan form
As a Titan, Kruger's form has sunken eye sockets, is very muscular, and has long blond hair. However, his Titan form also shared some unique facial characteristics with his human form, such as his pronounced cheekbones.

Personality
Kruger appears to be a largely stoic individual who never displays any emotions, most likely as a consequence of enduring years of suffering and misery as a mole and being forced to commit brutal and atrocious acts against fellow Eldians. After finding Grisha and Fay Jaeger outside of their internment zone, he feels no qualms in punishing Grisha physically. He continues to show a lack of empathy when the Jaegers learn of Fay's death, remaining stone-faced at the sight of their sorrow.

History
While spending his downtime watching blimps with Gross, Kruger caught sight of Grisha and Fay Jaeger following the blimp. Observing their armbands, Kruger deduced that they are from the Liberio internment zone. Because they had left their Internment Zone without permission, Kruger offered them a choice between hard labor or "physical punishment." Grisha nervously chose to take both his and Fay's punishment, and Kruger proceeded to savagely knee him in the stomach. Afterwards, however, Kruger showed a vague hint of empathy after allowing Grisha to stay with him to watch the blimp, citing that since he was here, he may as well see it. Kruger accompanied his fellow officer to inform the Jaegers of Fay's death and observed quietly as they grieved for Fay. Amidst the conversation, he looked into the traumatized Grisha's eyes, seeing pure hatred and a desire for revenge.

Kruger was present when Grisha was tortured by the Marley Public Security. He asked if he confessed to the Owl's identity, and Grisha assured he did not know. Kruger announced the boat that will send the Restorationists to Paradis Island was ready. During the operation at Paradis Island, Kruger escorts Grisha from the top of a thirty-foot wall, telling Grisha that as punishment for treason, he will be transformed into a Titan. Grisha tells Kruger that he remembers him from all those years back when his sister was murdered, which Kruger blithely acknowledges. He calmly watched the Restorationists being turned into mindless Titans and chase after their comrade.

As it was Dina Fritz's turn to be transformed, Kruger violently silenced a yelling Grisha and held him in place. Both he and Grisha watched as Dina was turned into a Titan. When Gross was about to throw Grisha off the Wall, Kruger suddenly intervened and pushed his comrade off the wall, and revealed to a shocked Grisha that he was the Owl. While mutilating his hand, he taught Grisha how to use the power of the Titans before, in his Titan form, destroying the Marleyan steamboat and slaughtering all the remaining soldiers.

People killed

 * At least 9 Marleyan soldiers.

Indirectly

 * Gross