TMDb/Marvel's Agents of S.H.I. TV Explore how Agents of SHIELD evolved from an MCU tie-in to its own acclaimed sci-fi saga, and its potential future in the Marvel universe. April 5, 2026 AceShowbiz - Agents of SHIELD is a remarkable seven-part sci-fi series created by and starring Clark Gregg that continues to earn praise years after its original run. The show is a key component of the Marvel Cinematic Universe's (MCU) extensive timeline, though it occupies a unique position within that vast franchise.