10 iconic Diablo characters who could return in future expansions and how their stories might unfold
Introduction: The Legacy Continues
The upcoming Diablo 4 expansions are poised to build upon the rich narrative tapestry established across the entire franchise, creating exciting opportunities for familiar faces to reemerge. With Mephisto’s dramatic return in Vessel of Hatred and Belial’s reappearance in Season 8, the stage is set for additional iconic characters to make their presence felt.
Diablo 4 initially introduced fresh antagonists like Inarius and Lilith alongside new heroes, but the expansion has clearly signaled that the past cannot be ignored. Numerous unresolved storylines from earlier installments demand attention, particularly given the cliffhanger ending that left players anticipating major developments.
This analysis explores ten compelling characters who could realistically return in future Diablo 4 content, examining both the narrative justification and potential gameplay implications of their reappearance. Each character brings unique storytelling opportunities that could significantly enhance the player experience.
Warning: Comprehensive spoilers for the entire Diablo series follow below.
Leah: The Tragic Vessel
Leah occupies one of the most heartbreaking roles in Diablo 3’s narrative, serving as the unwilling instrument for the Lord of Terror’s resurrection. Her heritage as the daughter of Adria the Witch and Prince Aiden of Tristram—while he was dominated by Diablo’s Dark Wanderer persona—placed her at the center of cosmic conflicts from birth. Adria’s secret machinations to utilize her daughter as Diablo’s contingency vessel following his defeat in Diablo 2 represents one of the franchise’s most devastating betrayals.
Raised as Deckard Cain’s adopted niece, Leah becomes the Nephalem’s crucial ally throughout Diablo 3 until her eventual possession and death at Diablo’s hands. While Covetus Shen declares her spirit permanently destroyed after Diablo’s defeat, the reliability of this assessment remains questionable given the series’ established lore about soul persistence and supernatural resurrection mechanics.
Despite her bleak conclusion fitting Diablo’s grim tone, such a significant character could potentially return through alternative means. Her status as heir to Westmarch’s throne before death might provide supernatural pathways for resurrection, particularly if Diablo seeks new vessels. While Prince Aiden never recovered from his possession, his brother’s return establishes precedent for family line continuations.
Deckard Cain: The Eternal Mentor
While Cain met his end in Diablo 3 after guiding players through three mainline games, the franchise feels incomplete without his wisdom. Diablo Immortal’s pre-Diablo 3 setting allowed developers to feature the character again, but by Diablo 4’s timeline, he exists only in memory and references—yet his absence feels particularly notable.
The Diablo universe frequently features characters returning from death or appearing as spectral entities, suggesting potential for quests where players consult Cain’s soul for vital intelligence about defeating Prime Evils. Alternatively, discovering archival recordings or narrated diaries could provide his iconic guidance without breaking established continuity.
The probability remains high that we’ll eventually hear “stay a while and listen” in some format, whether through spiritual manifestation, historical recordings, or timeline manipulation. His return could serve both nostalgic purposes and provide crucial narrative exposition for confronting emerging threats.
Tyrael: Humanity’s Angelic Ally
Following Malthael’s defeat as the Angel of Death in Diablo 3 and the High Heavens’ reconstruction after Diablo’s assault, Tyrael ascends to Aspect of Wisdom. Interestingly, the angel elects to maintain his human form within Sanctuary, continuing to assist the Nephalem and allies against emerging demonic threats.
Tyrael’s connection to fellow fallen angel Inarius, who plays a pivotal role in Diablo 4’s narrative, creates natural storytelling opportunities. As humanity’s most powerful celestial ally, his return seems almost guaranteed in future Diablo 4 content, especially if Diablo attempts to exploit current chaos for another resurrection.
His continued presence could provide strategic guidance, celestial resources, and direct intervention against major threats. The dynamic between his hard-earned wisdom and Imperius’s potential redemption arc offers rich narrative potential for exploring angelic politics and their relationship with humanity.
Mephisto & Baal: The Prime Evils
Diablo’s brothers, who collectively constitute the Prime Evils triad, faced defeat in Diablo 2 with their souls imprisoned within Soulstones subsequently destroyed at the Hellforge. These captured essences were then absorbed by Diablo in the third game, along with all Lesser Evil souls, transforming him into the ultimate Prime Evil entity.
Empowered by this consolidated demonic energy, the enhanced Diablo invaded the High Heavens, slaughtering angels until heroes ultimately defeated him. This creates fascinating narrative possibilities where the consumed souls might regain independence, allowing Mephisto (Lord of Hatred) and Baal (Lord of Destruction) to pursue individual agendas once more.
The fundamental nature of Prime Evils means they can never be permanently destroyed, only contained until they inevitably resurface to torment Sanctuary. Mephisto’s familial connection to Lilith as her father strengthens return theories, particularly considering her betrayal of Hell’s forces before imprisonment. Unlike his brothers, Mephisto hasn’t received adequate villain spotlight, presenting opportunity for him to establish his menace properly.
As anticipated, Mephisto has emerged as Diablo 4’s primary antagonist following his Vessel of Hatred return, possessing Akarat’s body and now roaming Sanctuary while undoubtedly plotting malicious schemes.
Imperius: The Humbled Archangel
As the Archangel of Valor residing in the High Heavens, Imperius likely faces significant humiliation following Diablo 3’s events. Not only was he deceived by Diablo, resulting in numerous angelic casualties, but his skepticism about humanity and the Nephalem’s crucial role in defeating Prime Evils proved misguided.
Compounding these errors, he spent centuries disparaging Tyrael while failing to monitor Malthael adequately. A more humble Imperius could reappear in Diablo 4 expansions, potentially setting aside previous prejudices to collaborate with humans protecting both celestial and mortal realms.
His character development from arrogant warrior to cooperative ally would provide compelling narrative progression while introducing strategic military expertise against demonic threats. The contrast between his traditional angelic approach and Tyrael’s more nuanced understanding of humanity could create fascinating internal conflict within the celestial forces.
Kormac, Eirena & Lyndon: The Beloved Companions
While combining three characters into one entry might seem unconventional, their interconnected dynamics justify this approach. This Diablo 3 follower trio significantly enhanced gameplay through their interactions and banter with players and each other. Their unlikely friendship development, including a love triangle between righteous Templar Kormac and self-professed Scoundrel Lyndon competing for time-displaced Enchantress Eirena’s affections, provided memorable character moments.
All three characters altered gameplay mechanics while their dialogue encouraged repeated playthroughs to experience different interactions across character classes. Class-specific dynamics emerged naturally—Crusaders bonding with devout Kormac while distrusting Lyndon, Demon Hunters tolerating the scoundrel’s rogueishness while finding the templar tedious.
Regardless of class choices, the Nephalem ultimately developed bonds with all three followers, with the relationship journey proving particularly engaging. Their comic relief through unique observations provided welcome respite from the game’s darker themes.
While Diablo 4 introduces new companions, Lyndon has already returned as a Backwater quest giver. Now a criminal leader maintaining order, the aged scoundrel nostalgically recalls his adventuring days while Eirena remains missing. Discovering her and Kormac’s whereabouts—and spending additional time with Lyndon—would greatly enrich Diablo 4’s narrative landscape.
Adria the Witch: The Betrayer’s Return
Adria appeared to die confronting heroes in Diablo 3 after revealing her Diablo allegiance and utilizing daughter Leah as his resurrection vessel. If she survived this encounter, numerous explanations would be required since her schemes ultimately failed, rendering her daughter’s sacrifice pointless.
Exploring Adria’s potential remorse or continued Diablo allegiance would create compelling narrative complexity. Her return could facilitate intriguing storytelling, though developers might alternatively maintain her deceased status. Practical considerations also arise regarding spell acquisition sources absent her merchant services.
Her character represents moral ambiguity within the franchise, having assisted players initially before revealing deeper loyalties. This complexity makes her potential return particularly interesting for examining motivation, redemption, and the consequences of catastrophic miscalculations in cosmic conflicts.
Azmodan: The Last Lesser Evil
With Belial’s Sanctuary return confirmed for Season 8, Azmodan’s reappearance seems increasingly probable. The Lord of Sin now stands as the only unaccounted-for Lesser Evil, possessing historical collaboration experience with Belial and opposition to Diablo. His resentment toward Diablo for soul consumption and manipulation during the first game’s conclusion likely remains potent.
While fellow Lesser Evils Andariel and Duriel supported Lilith in Diablo 4, Azmodan’s current allegiances remain unclear following her defeat. However, his ambition to conquer Sanctuary personally positions him as an excellent future DLC antagonist—provided he receives adequate development to showcase his villainous capabilities.
His strategic approach to corruption and domination differs significantly from other demons, focusing on systematic subversion rather than brute force. This methodology could introduce fresh gameplay mechanics and narrative challenges distinct from previous antagonists.
Zoltun Kulle: The Complex Artisan
Kulle represents an ancient Horadrim wizard who pursued dark magic for immortality before attempting Sanctuary domination. His defeat involved bodily dismemberment and soul separation until his head’s discovery in Diablo 3.
As the sole individual knowing the Black Soulstone’s location, Tyrael and Cain arranged his revival—reuniting him with his body parts—in exchange for this intelligence. After assisting heroes, his resurrection prompted alliance offers to the Nephalem encouraging Tyrael’s betrayal. Heroic refusal necessitated his second destruction.
Kulle subsequently returned to spirit form, serving as a disgruntled artisan and occasional advisor. His frequent player taunts and bitterness about defeat coexist with assistance regarding Kanai’s Cube recipes and strategic guidance.
The character maintains fan-favorite status due to his humorous insults and partially returned during Diablo 4’s Season 3 through memory echoes that confirmed what many suspected—his fundamental alignment wasn’t entirely villainous. His complex morality and practical utility make him a compelling candidate for expanded roles.
Diablo: The Inevitable Return
The titular demon’s absence from Diablo 4 feels particularly conspicuous despite ending foreshadowing. Lilith’s entire motivation revolves around preventing Diablo and his brothers from conquering Sanctuary, ensuring he remains the overarching antagonist even during non-appearance periods.
Lilith frequently appears as a somewhat sympathetic villain, especially for players familiar with her backstory, whereas Diablo embodies pure malevolence with perpetual resurrection schemes. With his niece eliminated and Mephisto active within the human world, Diablo’s return seems imminent.
As the series’ ultimate villain, titular primary antagonist, and undisputed Prime Evil dominating Hell, Heaven, and Sanctuary, assuming his permanent defeat would be profoundly unwise. Regardless of defeat frequency, killing methods, or soul banishment, the Lord of Terror’s resurrection remains inevitable—the central question concerns his next vessel’s identity.
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