Johann Fennhoff

"Now I need your complete focus. Do I have that?"

- Doctor Ivchenko

Doctor Ivchenko is a scientist who works for Leviathan.

Early Life
"I lost my wife and children to Leviathan." "I'm sorry."

- Ivchenko and Roger Dooley

Ivchenko was once married and had children.

In military camp
In 1943, Ivchenko was stationed in an army camp for the Soviet Armed Forces. While at the camp, he was reading a book called "The Tragic Life of Doctor Faustus". During his reading, he was interupted by a surgeon, who wanted Ivchenko assistence during an amputation of the leg of a soldier, called Ovechkin. Ivchenko was hesitant at first, but agreed to help nontheless. Ivchenko used his hypnotization-technique on the soldier, who focused on the memory of a game of chess he had with his mother before he enlisted in the army. As Ovechkin was completely focused on the memory, the surgeons could amputate his leg wihtout Ovechkin feeling any pain.

Captured
"My most heartfelt congratulates. You have all been selected to join Leviathan."

- Fyodor

Ivchenko was one of four men captured by Leviathan in 1944. These four were told that they had the option not to join the Soviet organization. When one of the four said that he wanted to be with his family, he was stabbed in the jugular vein; the remaining three were told that his family would be killed and they all will be together. Ivchenko chose to remain alive.

Discipline
Ivchenko was in a prison cell near the Red Room Academy when Peggy Carter and the Howling Commandos found him in 1946. He explained to them that he was imprisoned to keep the genius scientist Nikola focused and disciplined; he saw the world differently than most and Ivchenko kept him calm so that he could create a Photonic Amplifier from blueprints made by Howard Stark.

Carter and the Commandos freed Ivchenko and Nikola from their prison; however, in the ensuing firefight to escape the Red Room Academy, Nikola took Happy Sam Sawyer hostage to trade for his freedom. Nikola would no longer listen to Ivchenko and was killed by Strategic Scientific Reserve agent Mike Li. Ivchenko chose to go to New York City with Carter since he said he had nowhere else to go and he wanted to help to stop the schemes of Leviathan. Ivchenko was brought to the New York Bell Company Office to speak with Roger Dooley.

Coded Message
Ivchenko told Chief Roger Dooley how he was captured by Leviathan. Jack Thompson watched as Peggy Carter tried to get as much information as Ivchenko knew about the Red Room Academy, but he claimed he was only a psychologist, so he knew very little.

While he and Dooley were alone, Ivchenko tried to get Dooley to look out the window, but Dooley would not leave his chair. Meanwhile, Ivchenko was receiving a coded message from Dottie Underwood in the window across the street; she had a high powered rifle to kill the chief. Ivchenko then used his fingers to tap and scratch the windowsill of the office as Underwood watched; he told her that he needed more time in his mission, but Peggy Carter was her new target.

Brainwashing Agents
Ivchenko made observations that he shared with Dooley about Dooley's home life and family relationships. Dooley became captivated by what Ivchenko was saying; all along, Ivchenko was playing with a ring he wore as he talked to Dooley in a hypnotic tone. However, Daniel Sousa interrupted the conversation to speak to his leader.

Ivchenko was told that he would be watched by Agent Yauch as Dooley dealt with the flight of Peggy Carter. He talked to Yauch in a hypnotic tone as he rubbed his ring; Yauch began telling all he knew about the Howard Stark investigation and inventions to Ivchenko. Ivchenko then instructed Yauch on how to commit suicide.

Personality
When Ivchenko was called Fennhoff during World War II, he was a kind, sympathetic man. Seeing the pain in a Soviet Soldier facing amputation, Fennhoff did everything within his power to allow him to survive.

However, Fennhoff was captured by Leviathan and became Ivchenko.

Ivchenko is a ruthless operative. Hiding behind a persona of good will, he is able to manipulate others and hypnotise them. He lacks a complete disregard for human life as he did not only kill SSR agents but killed innocent civilians just to test a stolen weapon.

Abilities

 * Master Manipulator: Ivchenko was able to fool agents of the SSR into letting them believe that he wanted to be their ally, but he actually planned for the organization's downfall. Once he had gained their trust, Ivchenko used his influence to get Agent Yauch to commit suicide and came close to doing the same to Chief Roger Dooley.
 * Master hypnotist: Using his voice and a ring Ivchenko can hypnotise his victims and make them do what he want. He was even able to make Agent Yauch commit suicide.
 * Master Spy: Ivchencko can hide his true intentions and was able to infiltrate SSR and steal valuable items quite easily.

Family

 * Wife
 * Children

Allies

 * Leviathan
 * Fyodor
 * Dottie Underwood
 * Pasha † - Fellow Captive
 * Howling Commandos
 * Dum Dum Dugan
 * Happy Sam Sawyer
 * Junior Juniper †
 * Pinky Pinkerton

Enemies

 * Nikola † - Ally turned Victim
 * Strategic Scientific Reserve
 * Jack Thompson - Liberator
 * Mike Li † - Liberator
 * Rick Ramirez - Liberator
 * Peggy Carter - Liberator turned Target
 * Roger Dooley † - Thrall turned Victim
 * Yauch † - Thrall turned Victim

Appearances

 * Agent Carter
 * Season One
 * The Iron Ceiling
 * A Sin to Err
 * Snafu
 * Valediction

Trivia

 * In the comics, Johann Fennhoff was a brilliant psychiatrist and mind-manipulator, assuming the codename Doctor Faustus, and becoming a frequent enemy of Captain America.