How Netflix & Doritos Fielded 400k+ Voice-AI Calls
Netflix and Doritos wanted a Stranger Things campaign that broke through. Fans called a 1980s-style telethon and held unscripted conversations with the show's characters — a real-time generative voice AI that fielded 400k+ calls.
400k+
Handled fan calls via voice AI
Jay Singh
CEO & Founder
Casper Studios
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The Challenge
Netflix and Doritos wanted a standout, shareable activation for Stranger Things at a time when traditional ad formats were losing attention. The goal was an immersive, on-brand fan experience that worked at large scale without scripting every interaction.
What They Built
Casper built a first-of-its-kind interactive voice-AI experience: fans phone a 1980s-style telethon and hold real-time, unscripted conversations with Stranger Things characters. Generative voice AI powers unique character dialogue at scale, capturing fan voice messages along the way.
Casper designed the experience around a phone call: a nostalgic 1980s telethon that fit the show's world. Behind the line, a real-time generative voice-AI system produced unscripted, in-character conversations, so every fan got a different exchange rather than a canned recording. The system stayed on-brand and handled high concurrency, capturing fan voice messages during calls. It launched with zero defects and fielded more than 400,000 calls and 70,000+ voice messages — a novel, shareable activation that turned an ad into a participatory experience.
AI Role
AI carries the conversation. A real-time generative voice system holds unscripted, in-character phone conversations with fans at high concurrency, so every caller gets a different on-brand exchange rather than a canned recording.
Integration Points
Inbound telephony fields fan calls into a real-time generative voice-AI engine; fan voice-message capture during calls.
Impact
Handled by the real-time voice AI.
Captured from fans during calls.
Clean launch at campaign scale.
Implementation Complexity
Best Fit For
Entertainment, CPG and consumer brands wanting an interactive, on-brand activation that scales — where conversational voice AI turns a campaign into a participatory experience rather than a passive ad.
