Seth Peterson, an adult film actor, died at 28. The news was made public on March 21, 2026, by his fiancé and frequent creative partner, Kobe Marsh—known professionally as Cyrus Stark—who posted the announcement through Peterson’s X (formerly Twitter) account.
Seth Peterson, whose birth name was Adam Aguirre, died at his Los Angeles residence, according to The Advocate and Out Magazine. The official reason for his death remains unknown because Marsh stated that Peterson died unexpectedly, and he felt overwhelming sadness about the death.
Marsh expressed his complete devotion to his partner, stating that his life became less meaningful after Peterson’s death. Rocky Heron, who performs as an actor and creates digital content, described Peterson as someone who helped others through his work and gave generously.
People from both the industry and outside the industry have paid their respects. Rocky Heron, a fellow performer and content creator, praised Peterson for his “big heart” and unwavering passion, noting his generosity and the positive impact he has had on others. Fans shared their online condolences along with personal memories of him, highlighting his exceptional talent and friendly personality.
Marsh established a GoFundMe campaign after Peterson died to gather funds for memorial services and burial expenses, which allows people to support Peterson’s family while they grieve his loss.
