In the world of Fire Force (En'en no Shōbōtai), character depth often stems from the unique intersection of engineering genius and combat ability. Vulcan Joseph stands out as the eccentric, brilliant master mechanic of Special Fire Force Company 8. Far from being a standard background technician, he builds everything from high-tech anti-Infernal weaponry to Arthur Boyle's signature plasma sword. Bringing this larger-than-life character to both Japanese and English screens requires exceptional vocal range, capturing his manic engineering obsession, deep-seated trauma regarding the Evangelist, and eventual fierce loyalty to his newfound family.
Understanding Vulcan requires looking past his eccentric exterior to examine the voice actors who breathe life into him, the production choices behind his character design, and his pivotal role in Atsushi Ohkubo's hit series. This guide breaks down who voices Vulcan Joseph across languages, analyzes his character arc, and addresses common questions fans have about the iconic mechanic.
Who Voices Vulcan Joseph in Fire Force?
Casting the voice of Vulcan Joseph required performers capable of shifting on a dime from unhinged, wild-eyed inventors to deeply compassionate protectors. The role is shared by two distinct voice actors for the Japanese and English versions, both of whom bring immense energy to the character.
The Japanese Voice: Taku Yashiro
In the original Japanese audio, Vulcan is voiced by Taku Yashiro. Yashiro is well-known in the anime industry for voicing characters with high-energy personalities and fierce emotional cores, such as Kashiwagi in Ahiru no Sora and Fudou Akai in other major titles.
Yashiro's performance relies heavily on dynamic tonal shifts. When Vulcan is ranting about ancient animal species or his hatred for Dr. Giovanni, Yashiro pushes his voice into a frantic, high-pitched register that sells the character's sheer eccentricity. Yet, in moments of quiet reflection—such as when Vulcan confronts his past or builds a device to save his comrades—Yashiro grounds the character with a resonant, steady warmth.
The English Dub Voice: Jason Liebrecht
For the English adaptation produced by Crunchyroll (formerly Funimation), Vulcan is voiced by veteran voice actor Jason Liebrecht. Liebrecht has a massive portfolio of iconic anime roles, including Dabi in My Hero Academia, Zeke Yeager in Attack on Titan, and Lluvia in various titles.
Liebrecht approaches Vulcan with a slightly raspy, rugged edge that highlights the mechanic's time spent surviving alone in the wasteland of the Industrial Plant. His delivery captures the booming authority of a master craftsman while maintaining the comedic timing needed for Vulcan's frequent panic attacks and rivalry with Dr. Giovanni.
Character Origin and the Lore of the Industrial Plant
Before joining Company 8, Vulcan lived in a massive, sprawling scrapyard known as the Industrial Plant, accompanied only by his adopted family members Lisa and Yu. This isolation wasn't accidental; it was born out of a bitter betrayal.
Dr. Giovanni, a member of the shady Holy Sol Temple and an agent of the White-Clad, manipulated Vulcan's grandfather, causing a rift that left Vulcan deeply distrustful of the religious establishment and anyone associated with the Temple. When Shinra Kusakabe and Company 8 first encounter Vulcan, they have to prove their trustworthiness not through force, but through respect for his craft.
Key Equipment Built by Vulcan
- Excalibur (Arthur's Plasma Sword): A hilt that generates a blade of pure plasma, though Arthur's perception heavily dictates its actual physical form and stability.
- Type 2 Fire Engine: A heavily modified transport vehicle equipped with specialized life-support and suppression gear tailored for Special Fire Force operations.
- Specialized Ammunition and Gear: Custom-built extinguishers, structural reinforcement tools, and suppression grenades designed to handle varying classes of Infernals.
Why Vulcan Is Essential to the Fire Force Narrative
Many viewers initially mistake Vulcan for a purely comedic side character or a localized equipment provider akin to My Hero Academia's Mei Hatsume. However, Vulcan's narrative weight is tied directly to the core mystery of the Adolla Burst and the Great Cataclysm.
As an independent craftsman who understands the true nature of the ancient artifacts and the Amaterasu, Vulcan serves as an exposition bridge. He connects the scientific realities of the world with the theological lies spun by the Holy Sol Temple. His deep grudge against Dr. Giovanni acts as a primary catalyst for Company 8's confrontations with the Evangelist's forces during the second half of the series arc.
Frequently Asked Questions
Who is Vulcan Joseph based on in mythology?
Atsushi Ohkubo frequently draws from mythology and folklore. Vulcan takes his name from the Roman god of fire, metalworking, and smithing, which directly mirrors his profession as a master mechanic and creator of weapons.
Does Vulcan have pyrokinetic powers?
No, Vulcan is a normal human without an Ignition Ability. His strength lies entirely in his genius-level intellect, engineering skills, and his ability to construct advanced mechanical tools to level the playing field against powerful Infernals.
What is Vulcan's relationship with Lisa?
Lisa was raised alongside Vulcan in the Industrial Plant under his grandfather's care. Though she was initially revealed to be an undercover agent for the White-Clad due to brainwashing and coercion, Vulcan's unwavering forgiveness and belief in her humanity help break her free from the enemy's control.
Where can I watch Fire Force with Vulcan's voice performances?
You can stream both the Japanese audio with subtitles and the English dub of Fire Force on major platforms like Crunchyroll.
