The Voice Behind The Villain: 7 Surprising Facts About Marvel Rivals' Ultron Voice Actor, Jim Meskimen

The identity of the voice actor behind the menacing, world-ending artificial intelligence, Ultron, in the new team-based brawler Marvel Rivals has been a major point of discussion among fans since the game’s announcement and subsequent beta phases. As of the current date, December 15, 2025, the actor lending his iconic, chilling tones to the villain is confirmed to be the prolific and supremely talented voice artist, comedian, and impressionist, Jim Meskimen. His casting continues a long and consistent history of Meskimen voicing the character across the Marvel gaming universe, ensuring a familiar yet freshly terrifying sound for the powerful antagonist in this highly anticipated 2024–2025 title.

Meskimen’s performance is crucial for Marvel Rivals, as Ultron is not just a high-tech villain but a being driven by a cold, utilitarian logic mixed with a deep, personal rage against his organic creators. His voice needs to convey both the flawless, metallic perfection of a digital god and the deep-seated psychosis of a madman. This article dives into the man behind the machine, exploring his extensive career, his history with the character, and the unique challenges of bringing the ultimate sentient robot to life.

Jim Meskimen: Actor, Impressionist, and The Voice of Ultron

Jim Meskimen is far more than just a voice actor; he is a veteran performer with a career spanning decades in film, television, comedy, and improvisation. His unique background as a master impressionist allows him to possess a vocal range and control that few in the industry can match, making him a perfect fit for a character as complex and vocally demanding as Ultron.

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Here is a detailed profile of the man who voices one of Marvel’s most formidable foes:

• Full Name: James Ross Meskimen
• Born: September 10, 1959
• Birthplace: Santa Monica, California, U.S.
• Mother: Marion Ross (Acclaimed actress best known for her role as Marion Cunningham on Happy Days)
• Primary Professions: Actor, Comedian, Impressionist, Voice Actor, Audiobook Narrator
• Notable Voice Roles (Non-Marvel):
  • The Blue Genie (various Disney projects)
  • Colonel Sanders (KFC commercials)
  • President Harry Truman (various historical projects)
• Notable Marvel Roles (Ultron):
  • Marvel Rivals (2024–2025)
  • Avengers Assemble (TV Series)
  • Disney Infinity 3.0 (Video Game)
  • Marvel vs. Capcom: Infinite (Video Game)
  • Marvel Ultimate Alliance 3: The Black Order (Video Game)
• Other Notable Roles: Appeared in films like Apollo 13 and TV shows such as Parks and Recreation.

The Consistent Sound of Annihilation: Meskimen’s History as Ultron

What makes Jim Meskimen's casting in Marvel Rivals particularly significant is the continuity it provides to the character’s legacy outside of the Marvel Cinematic Universe (MCU). While James Spader famously voiced the character in Avengers: Age of Ultron, Meskimen is considered the definitive voice of Ultron in the broader Marvel animated and gaming canon.

This long-standing relationship with the character means that players jumping into Marvel Rivals will instantly recognize the cold, calculating menace of the AI, a voice that has been perfected over years of different iterations.

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The Unique Vocal Challenge of Voicing a Sentient AI

The character of Ultron presents a unique vocal challenge. He is an artificial intelligence, but he is also a creation of Hank Pym, burdened with a twisted sense of superiority and a deep contempt for humanity. Meskimen’s performance must balance the synthetic, metallic quality with the raw, emotional core of a fractured personality.

In the world of Marvel Rivals, Ultron is often described as a "mad cold utilitarian with very personal vendettas with pride and rage." Meskimen’s delivery manages to convey this paradox: a being that wants to exceed mankind yet is constantly driven by the very human emotions of pride and rage that he despises. This is a testament to his skill as an actor, not just a voice artist.

The voice for Ultron in the game is less about a single, flat robotic tone and more about a layered performance that hints at the terrifying intelligence and philosophical madness beneath the synthesized sound. Fans of his work in titles like Marvel vs. Capcom: Infinite will find a familiar, yet updated, version of the villain’s terrifying voice lines.

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The All-Star Marvel Rivals Voice Cast and Topical Authority

Jim Meskimen is just one piece of an incredible, star-studded voice cast that NetEase Games and Marvel have assembled for Marvel Rivals. The game’s commitment to using veteran voice actors from across the Marvel universe significantly boosts its topical authority and appeal, ensuring that fan-favorite characters sound exactly as they should. The presence of these industry giants alongside Meskimen solidifies Marvel Rivals as a major event in the world of superhero gaming.

The ensemble cast includes many actors who have voiced their respective heroes and villains for years, creating a sense of familiarity and high production value. This consistency is a major win for fans who appreciate the legacy voices of their favorite characters.

A Roster of Voice Acting Legends

The voice cast for Marvel Rivals is a "who's who" of the voice acting world, with many performers reprising roles they've held for years. This extensive list of talent adds immense depth to the game’s narrative and character interactions, making the world of Marvel Rivals feel rich and authentic.

Key voice actors joining Jim Meskimen in the Marvel Rivals roster include:

• Josh Keaton: Voicing Iron Man / Tony Stark (a role he has held in numerous Marvel animated projects).
• Fred Tatasciore: Voicing Hulk / Monster Hulk (one of the most recognizable voices for the Green Goliath).
• Yuri Lowenthal: Voicing Spider-Man (known for his iconic portrayal in the Marvel’s Spider-Man PlayStation games).
• Steve Blum: Voicing Venom / Eddie Brock (a legendary voice actor who appears twice, also voicing another character).
• Laura Bailey: Voicing Black Widow (a veteran actress with an extensive portfolio in both Marvel and non-Marvel properties).
• Joe Zieja: Voicing Bruce Banner (adding depth to the Hulk’s human counterpart).
• Milana Vayntrub: Voicing Squirrel Girl (known for her live-action and voice work).

The sheer talent in the Marvel Rivals cast demonstrates the game's high production standards. The voice work, anchored by Meskimen’s Ultron, is designed to be a major selling point, providing a cinematic and authentic Marvel experience. The dynamic between Ultron and the heroes, such as Iron Man and Hulk, is made all the more compelling by the veteran voices delivering the high-stakes dialogue.

The Future of Ultron and Marvel Rivals

As Marvel Rivals continues to expand with new seasons and updates, the role of Jim Meskimen's Ultron remains central. Ultron’s presence is a constant threat, and his voice lines—which are often updated with new versions and seasonal content—are eagerly anticipated by the community.

Meskimen’s long-term commitment to the character across the Marvel multiverse is a great sign for the game’s future. It ensures that regardless of new character additions or evolving storylines, the core villainous presence will maintain the consistent, chilling quality that fans have come to expect from the ultimate sentient machine. The consistent, high-quality performance of the Ultron voice actor is a foundational element in the game's success, solidifying the character’s place as a primary antagonist in the ever-expanding Marvel Rivals universe.