Guilliman

Biodata

Feature	Value
Name	Roboute Guilliman (基利曼) 309 379
Alias(es)	Lord Regent 228 292
Species/Race	Primarch 268 292
Gender	Male 228 538
Affiliation	Imperium of Man; Ultramarines 228 379
Occupation/Role	Lord Regent; Imperial military and political leader 228 443
Status	Revived by the Emperor 538
First Appearance	Chapter 228 is the earliest direct scene supplied; the figure presented as Guilliman is subsequently revealed to be Alpharius 228 268

Identity and Impersonation

The Guilliman leading the Imperium through much of the documented story is Alpharius impersonating him. The real Guilliman remains in stasis until the Emperor revives him 268 310 489 538.

• False awakening: When the Crone Sword severs Guilliman’s stasis field, Necron-derived teleportation equipment transfers it into a larger stasis field rather than freeing him 268.
• Acquired memories: Alpharius consumes Guilliman’s flesh to obtain his memories. The passage specifies that only another Primarch could digest them, and even then their volume is overwhelming 268.
• Physical disguise: Alpharius consciously reshapes his regenerating body into Guilliman’s likeness. Because he is the shortest Primarch, the disguise requires biological height enhancement 269.
• Continuing deception: Later chapters explicitly identify the Lord Regent as Alpharius while he commands crusades, negotiates with other Primarchs, and directs Terra’s defenses 310 489 531.
• Actual return: The Emperor eventually revives Guilliman and takes him to help rescue the Lion, who initially mistakes him for Alpharius 538.

The campaigns and administrative actions below concern the public Guilliman persona unless stated otherwise.

Background / History

Guilliman’s apparent restoration is engineered through Cawl’s armour-fitting apparatus, whose concealed purpose is teleportation. Rather than awakening Guilliman, the process preserves him inside another stasis field and enables Alpharius to assume his identity using his physique and memories 268.

Alpharius does more than imitate Guilliman’s appearance. He governs as Lord Regent, draws on remembered relationships with the Emperor and the Primarchs, and uses the authority of Guilliman’s name to reorganize Imperial forces. While reflecting on those inherited memories, he privately addresses the Emperor as “Father” and asks what he should do 274 309 310.

After the Emperor’s return, the real Guilliman is revived with facial pain and accompanies him to retrieve the Lion. At The Rock, Guilliman and the Lion compare their experiences and incorrectly blame Alpharius for the confusion surrounding their reunion. They agree to beat him when they next meet 538.

Personality

The public Guilliman persona is highly rational and administratively focused. Following the costly victory at Arisath, he grieves for the Ultramarines’ nearly annihilated Fifth Company but immediately begins reallocating troops to repair the region’s defenses. In battle, he delegates to capable subordinates rather than controlling every squad himself 228 266.

His attachment to Lady Euten repeatedly strains that restraint. He opposes Cawl’s attempt to use her as bait, insists that she remain behind during a major deployment, and becomes intensely distressed when she disappears. Even then, his anger and anxiety are described as operating beneath rational thought rather than replacing it 238 249 255.

As Alpharius, the Lord Regent also relies on performance and symbolism. He uses Sanguinius’s legacy to unite successor Chapters, carefully stages public reunions, and combines diplomacy with force when persuasion fails 310 488.

Abilities & Skills

Strategic Command and Delegation

The Lord Regent rapidly develops assault plans and gives trusted forces freedom to execute them 266.

• Orders the Imperial Navy to drive enemy ships from Oslosa 24’s orbit while cooperating Chapters conduct surprise attacks 266.
• Coordinates troop transfers to replace depleted regional defenses 228.
• Recognizes that a prolonged stalemate against Orks favors the enemy and considers Sisters of Silence and Custodes support through Pharos 387.
• Calls expeditionary forces back toward Terra as simultaneous threats intensify 531.

Political Organization

The Guilliman persona uses Imperial authority to assemble otherwise fragmented forces 310.

• Transfers Blood Angels veterans into new Chapters as leaders and organizes a shared ceremony around Sanguinius’s memory 310.
• Stops reinforcing especially troubled Blood Angels successors when Primaris additions worsen their conditions 310.
• Secures agreements allowing First Founding Chapter Masters to call upon the Adeptus Custodes 310.
• Limit: His control is incomplete; Yi Feng cites the Silver Swords’ independent actions and the Minotaurs’ retrieval mission as evidence that smaller Chapters remain difficult to direct 433.

Primarch-Level Combat

The figure fighting as Guilliman demonstrates overwhelming strength and adaptability 255 379 391.

• Charges Greater Daemon Hongka rather than pausing for the Hand of Dominion’s complicated reload 255.
• Recognizes Perturabo’s trap quickly and closes into melee to tie him down 267.
• Decapitates the Blood Axe Warlord with the Emperor’s Sword as an Ork teleportation attempt begins 379.
• Abandons a direct approach against Magnus and adapts to the shifting battlefield inside a corrupted Space Hulk 391.

These feats belong to the impersonation period and are not independent demonstrations by the restored Guilliman 268 310 538.

Equipment / Weapons / Items

• Armour of Fate — Worn by the public Guilliman persona. He dismisses a protective panel as inferior to it; the related armour-fitting apparatus conceals Necron-derived teleportation technology 244 268.
• Emperor’s Sword — Used against Hongka and the Blood Axe Warlord. Alpharius is explicitly shown carrying it during a later operation 255 379 459.
• Hand of Dominion — Its remaining ammunition is nearly exhausted during the attack on Hongka, but the wielder continues charging instead of reloading 255.
• Armour of Hope / Angel Suit — Replaces the old armour during Cawl’s fitting procedure. Its steel wings conceal weapons controlled as naturally as the wearer’s limbs 283.
• Great Crusade-era spare armour — Worn while addressing Imperial commanders after the defeat of the IV Legion 274.
• Macragge’s Honour — The flagship associated with Guilliman’s forces; his unexplained absence aboard it causes panic among the Ultramarines 379 391.
• Three Holy Litanies — Presented to the public Guilliman persona by Jaghatai Khan during their reunion on Terra 488.

Relationships

• The Emperor — His father. Alpharius draws on Guilliman’s memories of him; the Emperor later revives the real Guilliman and brings him to rescue the Lion 309 538.
• Alpharius — His impersonator, who acquires his memories and governs under his identity. Following his restoration, Guilliman and the Lion agree to confront him physically 268 269 538.
• Lady Euten — Someone the public Guilliman persona fiercely protects. He orders Cawl to erase her records, prevents her from accompanying him, and reacts with distress to her disappearance 238 249 255.
• Belisarius Cawl — Essential technological collaborator in the substitution scheme. Their working relationship includes conflict over Euten’s safety and later disputes surrounding dangerous experiments 238 268 489.
• Jaghatai Khan — Welcomed warmly as a returned brother by the Lord Regent persona, who intends to appoint him Warmaster. Their subsequent exchanges become openly abrasive 488 489.
• The Lion — Reunites with the real Guilliman after his revival, initially mistaking him for Alpharius 538.
• Yi Feng — A commander the Lord Regent seeks to assess and employ. He approves Yi Feng’s participation in a confidential ritual, assigns him to distribute Adamantium Armor, and directs him into the Golden Throne apparatus 244 482 492.
• Marneus Calgar — Takes command after Guilliman’s vessel enters the Warp. Later, his forces fire on the Omegon before the Lord Regent can stop them 277 470.
• Perturabo — Opponent whose tightly controlled command style contrasts with Guilliman’s delegation. Their confrontation exposes the impersonation, and Perturabo later prepares another battlefield intended to counter the persona’s evasiveness 266 267 268 443.

Story Role / Major Arcs

Arc	Role and outcome
Arisath aftermath	Returns to Terra after crusading through Segmentum Tempestus. With only one Primaris Librarian surviving from the Ultramarines’ Fifth Company, he organizes replacement defenses 228.
Lady Euten crisis	Challenges Cawl’s proposed use of Euten as bait, arranges additional Custodes protection, and attacks Hongka after learning she has disappeared 238 252 255.
Oslosa 24 and the identity reveal	Directs the assault against Perturabo and enters his trap. The following chapters reveal the stasis substitution and show Alpharius rebuilding Guilliman’s appearance 266 267 268 269.
Blood Legion campaign	Publicly declares the Blood Legion defeated, while the Ultramarines recognize that the classified conflict behind the victory remains unfinished 292.
Renewed Great Crusade	Studies historical records, suspects his brothers’ disappearances were not final, and announces a campaign to reclaim enemy-held worlds. Alpharius then organizes Primaris lineages and successor Chapters under Guilliman’s authority 309 310.
Ork war and Magnus’s trap	Defeats the Blood Axe Warlord, then fights Magnus inside a Space Hulk where a ritual threatens to send him into Slaanesh’s realm 379 391.
Fengyan Star lure	Responds to the Emperor’s cryptic message while Tzeentch, Vashtorr, and Perturabo prepare a confrontation intended to draw him out 443.
Terra’s preparations	Welcomes Khan, plans senior roles for the returned Primarchs, orders widespread distribution of Adamantium Armor, and coordinates Yi Feng’s placement on the Golden Throne apparatus 482 488 492.
Restoration of the real Guilliman	The Emperor revives him, ending the documented stasis confinement and bringing him into the effort to recover the scattered Primarchs 538.