Buddy (2026): Casper Kelly's Killer-Unicorn Sundance Horror, Explained

Buddy premiered in the Midnight section of the 2026 Sundance Film Festival on January 22. Roadside Attractions and Saban Films acquired it there and set a US theatrical release for September 4, 2026. It runs 95 minutes and is rated R.

Casper Kelly directed the film from a script he wrote with Jamie King, and BoulderLight Pictures produced it. Kelly has spent years writing for Adult Swim; Buddy is his first feature.

The film moves between two worlds. In one, set in the late 1990s, a group of children live inside "It's Buddy!", a Barney-style kids' show hosted by Buddy, a giant orange humanoid unicorn with a purple heart on his chest. The show world includes a clubhouse, talking household objects, and an anthropomorphic rabbit roommate. In the other, Grace (Cristin Milioti) lives an ordinary suburban life with her husband (Topher Grace) and two kids, with a growing sense that something is wrong.

Buddy runs his show as a friendly host until a child steps out of line, at which point he turns violent. When one of the kids vanishes and the others start to defy him, he sends them on a dangerous journey toward the mythical Diamond City. How the show world and the suburban world connect is the film's central question, and Sundance reviews avoided spoiling it.

Keegan-Michael Key voices Buddy. Michael Shannon and Patton Oswalt also appear.

Kelly wrote and directed Too Many Cooks, an eleven-minute Adult Swim short from 2014 that began as a parody of 1980s sitcom opening credits and gradually turned into horror. It went viral and remains the work he is best known for. He also co-created the Adult Swim series "Your Pretty Face Is Going to Hell." Much of his work takes a familiar, comforting television format and makes it hostile, which is the same idea Buddy is built on.

Buddy follows a similar path to Backrooms: a creator known for short-form internet work directing a studio-backed feature. In both cases the open question is whether a premise that worked at short length holds up at feature length. Too Many Cooks ran eleven minutes; Buddy runs 95.

Both, by the festival accounts. Sundance reviews described it with words like "batshit," "surreal," and "equal parts funny and messed up," and several noted that the horror still registers alongside the comedy. It is not built on jump scares. The fear comes from a familiar, friendly children's-TV world turning violent.

Reviewers also singled out the practical effects. Buddy is a physical puppet and costume creation rather than a CG character, and the late-1990s children's-television look is recreated in detail.

One note for some viewers: the premise puts children in danger, and the film does not soften that. It is rated R.

Buddy belongs to a familiar strain of horror that turns a symbol of childhood safety into a threat. The closest recent comparison is M3GAN, another horror film about a friendly companion figure that turns violent, played partly as satire. For the vintage-television setting, Late Night with the Devil built its horror inside a recreated 1970s broadcast the way Buddy does with a 1990s kids' show.

On tone, Ready or Not is a horror film that stays funny without softening its violence, and The Cabin in the Woods works by pulling apart a familiar format from the inside. Both are useful reference points for what Buddy is attempting.