Convention - SDCC 2025 : 11th Musical Anatomy of a Superhero – Alex Seaver on Building the Sound of Arcane

By Mulder, San Diego, Hilton San Diego Bayfront Hotel, 24 july 2025

On July 24, 2025, following the 11th Musical Anatomy of a Superhero and Other Heroes panel at San Diego Comic-Con, the Hilton San Diego Bayfront Hotel press room became the stage for an in-depth roundtable with Alex Seaver. Known for his versatility as a singer, songwriter, composer, and Executive Music Producer, Alex Seaver has built a career at the crossroads of music, film, television, and video games. The conversation offered a rare window into the creative mind of an artist equally comfortable producing chart-topping tracks, composing sweeping orchestral scores, and guiding some of the world’s most celebrated musicians through the immersive soundscapes of animated storytelling.

A Juilliard-trained musician, Alex Seaver’s journey has been anything but conventional. Beyond his own artist project, Mako, his collaborations span genres and formats—from working with Riot Games to writing and producing for globally recognized acts. Most recently, he took on the role of Executive Music Producer and composer for the second season of Riot Games’ Emmy-winning Netflix animated series Arcane, a project that has become one of the defining milestones of his career. Over two seasons, Arcane spent an impressive 15 weeks in Netflix’s global top 10, and Alex Seaver earned an Emmy nomination for his work on the first season. For season two, he assumed an even more ambitious role, curating and shaping a massive 22-song soundtrack that brought together global superstars such as Twenty One Pilots, Linkin Park, Stromae, Stray Kids, Young Miko, and Ashnikko.

During the roundtable, Alex Seaver shared behind-the-scenes insights into the delicate process of weaving these diverse voices into a coherent sonic identity for Arcane. He spoke about the challenge of guiding artists through the show’s distinct musical world while preserving their own creative signatures. This was not just about delivering individual songs; it was about building an interconnected soundtrack that functioned as a narrative extension of the series itself. Working alongside composer Alex Temple, Alex Seaver also crafted the score, ensuring that the emotional beats of the story were seamlessly integrated with the album’s contemporary sound. His own performance on “What Have They Done To Us,” released under Mako, was described as a deeply personal moment within the soundtrack—one that resonated strongly with the show’s fanbase.

Perhaps one of the most impressive statistics from his recent work is the soundtrack’s impact: since its release, it has amassed over 1.6 billion global streams. Yet, Alex Seaver was quick to highlight that this success was the result of collective creativity rather than individual achievement. He spoke of the privilege of working with artists from different cultural and musical backgrounds, noting that the fusion of these styles not only expanded the show’s reach but also enriched its emotional depth. This global collaboration, he explained, mirrors the thematic DNA of Arcane itself—a story rooted in unity through diversity.

When the conversation turned to his creative process, Alex Seaver revealed that his foundation in classical training at Juilliard has been instrumental in enabling him to shift fluidly between genres. Whether writing for a full orchestra, producing electronic beats, or blending the two, his approach is anchored in an understanding of musical storytelling. He discussed how his background as a performer has helped him connect more intuitively with the artists he produces, fostering an environment where experimentation and vulnerability are encouraged. For Alex Seaver, the goal is always the same: to create music that resonates on both a visceral and emotional level.

By the end of the roundtable, it was clear that Alex Seaver represents a new generation of composers—artists who see no boundary between mainstream music, cinematic scoring, and interactive media. His work on Arcane exemplifies how a soundtrack can become a cultural event in its own right, transcending its role as accompaniment to become a living, breathing part of the story. As he left the press room, the impression he left behind was one of relentless creativity, collaborative spirit, and a deep belief in music’s power to connect people across mediums and borders.

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Photos and video : Boris Colletier / Mulderville