Rogal Dorn

"' Father, are you familiar with the expression 'you are what you eat'? Seeing as you are behaving like an ever-growing pile of screaming psychic children.'"Rogal Dorn, also known as Lord Adorable, Dadorable, and Adornable, is the Primarch of the Imperial Fists, and seventh son of the Emperor. He is a major character in If The Emperor Had a Text-To-Speech Device from season three onwards

Official Canon
Like the rest of his brothers, Rogal Dorn was cast adrift across the galaxy shortly after he was born. He appeared on the frigid world of Inwit, which despite its inhospitable environment, the people were extremely hardy and had even successfully built their own interstellar empire. Unlike his brothers, though, he sought out the Emperor first during the Great Crusade, and was reunited with his legion, the Imperial Fists. Dorn quickly gained a reputation for stubbornness and resiliency, specializing in siege warfare and building impregnable fortifications. Impressed, the Emperor named Dorn the Praetorian of Terra, and had him construct the Imperial Palace. Dorn's brother Perturabo, himself an expert on siege warfare, was intensely jealous, especially after Dorn flatly claimed that he could build a fortress even Perturabo couldn't break into.

Dorn firmly believed in the Great Crusade and looked to his father for guidance. While a very capable military leader, his stubborness and blunt honesty often got him into trouble with his other brothers. In particular he was nearly killed by Konrad Curze for letting slip a secret that Kurze had told Fulgrim in private.

Horus Heresy
During the Horus Heresy, the defense of Terra fell to Dorn and his Imperial Fists; they faced the majority of the Traitor Legions, with only the Blood Angels and White Scars to support them. Though they repelled the invaders, Dorn and Jaghatai Khan couldn't save their brother Sanguinius, nor prevent the Emperor from being mortally wounded in his duel with Horus. Dorn fell into despair, believing that he had failed his father.

The Scouring
Furious at his failures, Rogal Dorn set out to purge the Imperium of all traces of the traitor legions; however, Roboute Guilliman published the Codex Astartes, demanding that all remaining loyalist forces split up their legions so as to prevent another Horus Heresy from happening again. Dorn at first refused, but the threat of another civil war and several hours spent meditating while wearing a pain glove caused him to reevaluate his position. While he accepted the Codex Astartes, the Imperial Fists did not.

Perturabo reappeared to get his revenge on Dorn, and claimed that he had built a fortress that Dorn couldn't destroy. With the full might of the Imperial Fists, Dorn swore that he'd bring back the traitor primarch in an iron cage. The battle proved to be a trap, however, and countless Fists died in myriad ways, with the Ultramarines coming to their rescue. When the battle was over, the remaining Imperial Fists accepted the splitting of the legions. However, Dorn reminded them that they were still his sons, and that should the need arise, the successor chapters would meet again as a legion to protect Terra.

Rogal Dorn's final recorded appearance was during the first Black Crusade. He personally boarded one of the enemy's ships, but was never seen again. Only his hand remained, leading the Imperial Fists to assume him dead.

TTS Canon
When escorting the Emperor into the Golden Throne, Dorn's iron halo accidentally poked out one of the Emperor's eyes. It is for that reason that the emperor has an auspex in one of his eyes.

While most of the Imperium believed Rogal to be dead, he revealed himself as none other than the Emperor's personal Centurion. While in his disguise as a Centurion, the Emperor found him to be adorable and employed him as his "Centuri-bear," where he would comfort his father in times of distress and cuddle with him nightly. Dorn broke his vow of silence and revealed his existence to prevent Magnus the Red from going crazy upon hearing about the Space Wolves (this failed because of Kitten). Rogal Dorn stated that he survived the first Black Crusade, and that the hand he left behind fell off after using his "magic pain glove" too many times. As to why he didn't reveal himself sooner, he claimed that he took his vow of silence to atone for his past mistakes, which both the Emperor and Kitten thought to be a stupid oversight on his part.

As per Imperial Fist tradition, Rogal Dorn has a wall-name, which is 'Adorable.' The Emperor refuses to use this name, even if he may have been the inspiration for it. It is possible that Rogal chose this wall-name specifically to 'troll' his father. Some of the Emperor's names for Rogal Dorn include "Honey-Mustard Mustached Homonculus," "Lemon-stained hunk of ceramite," and "Rogaly-Don-Don."

Rogal has recently come under pressure to move out of the Imperial Palace to be with his legion, which he firmly resists. He also greatly enjoyed playing Stellaris in "TTS Special 7: Space Game Pain" happily building his empire (heavily fortifying everything, of course) and becoming annoyed at his father for breaking the immersion.

In "TTS Episode 30, Part 2: Oh No Oh NO OH NO OH NO OH NO OH NO" Rogal dons his helmet again and throws himself at the Emperor in a last ditch attempt to quell his uncontrollable rage, which is in danger of tearing Terra apart. Rogal is seen afterwards, scorched and, as many believe, dead.

Personality
Rogal Dorn is apparently so literal-minded that he has trouble identifying sarcasm or interpreting idioms. The reason for this may have something to do with using a chainsword to scratch his head. However, he is also surprisingly lucid, as he instinctively understands the myriad problems plaguing the Imperium and the galaxy at large, particularly the end-times. Another interpretation is that Rogal Dorn has super-sanity; he understands sarcasm just fine, he just finds particular phrases and customs nonsensical. He's also capable of feeling emotions, despite what his constant monotone and stoic facade may suggest. And despite his loyalty to his father, he is still capable of getting into heated arguments with him, from asinine issues such as Taco Tuesday to serious ones such as his father's inability to admit fault.

Despite his personality irritating others, Dorn still earns other people's respect for his pragmatism and lack of ego. His fervent loyalty to his father goes beyond mere obedience, as he genuinely desires to see a prosperous mankind and wants to build more than just fortifications and walls.

Compared to his own father, Rogal Dorn is very nurturing but also stern when he needs to be, as demonstrated by his mentorship of the Voxcast serf Boy, whom he had quickly grown fond of. Dorn is fiercely protective of Boy whenever Karstodes bullies him, and always encourages his dreams of becoming a space marine. He is also respectful of the everyday people of the Imperium, stating that they help make the Empire a better place. His relationship with the Black Templars however is quite strained, as he views them all as equally immature as their founder Sigismund, even calling Helbrecht by that name by accident when admonishing him.

Rogal Dorn was aware of how is father manipulates his sons to get them to do what he wants, and made up for the Emperor's lack of honesty by telling Magnus what he knew. Dorn seemed completely unfazed by this fact. He is however capable of using metaphors, as when he compared his father's actions to a game of regicide.

True to his reputation as the Imperium's greatest architect, Rogal is obsessed with fortifications and infrastructure development built and constructed with calculated precision. When he was briefly made Game Master during their game night, he sets the game as a simple city management, such as tallying taxes and overseeing construction development, which causes his Game Master privileges revoked by the Emperor. When he discovers that Urien Rakarth had planted spyware into the Imperial Palace, Rogal threw a fit of rage and proceeded to "reinstall" the Palace.

Quotes

 * 1) "Father. Your sweetheart was I, Rogal Dorn."
 * 2) "I hope our nightly cuddling sessions aren't rescheduled because of this."
 * 3) "I am fortifying this position."
 * 4) "Fecal matter does not have mental capacity. You don't need to fortify against it."
 * 5) "I suspect he was high on narcotics."
 * 6) "I am the best treehouse architect in the galaxy. I accept the challenge."
 * 7) "I was me"
 * 8) (emotionless) "I was something beyond furious"
 * 9) "Magic Pain Glove, I am lost on this heretical ship. Tell me what I must do." *Hand falls off* "Your services are no longer required."
 * 10) "He is breaking perfectly formed wooden furniture for no other reason than forcing a cheap slapstick joke. THAT is something that I CAN NOT forgive."
 * 11) "According to approximately 511 passages in the Book of Judgement, refraining from defining words to Imperials of high political stature is punishable by a 5-day death sentence in a phospex bath. As well as a summary kick to the jaw."
 * 12) "There is no such sauce product..."

Trivia

 * Rogal's favorite pastime appears to be cooking.
 * His Fortified Waffles are so impenetrable that not even power tools could do so much as cut it.
 * Rogal portrays himself as a Lithoid Golem in "TTS Special 7: Space Game Pain" where he plays Stellaris, although with appropriate yellow lines instead of blue.