'Loki' introduces Owen Wilson as Agent Mobius and the Time Variance Authority - here's who they are and what they do INSIDER 4 hrs ago "Loki" introduces the Time Variance Authority (TVA) to the Marvel Cinematic Universe. In the comics, the TVA are the protectors of all timelines and realities in the Marvel multiverse. Owen Wilson plays Mobius M. Mobius, a TVA agent who investigates dangerous time criminals. With their newest slate of projects, Marvel Studios continues to expand and explore the weirder corners of the Marvel Universe. "Eternals" brings together an immortal alien race created by the Celestials who have quietly lived on Earth for thousands of years; "What If...?" introduces Uatu the Watcher, an omniscient being; and "WandaVision" was the MCU's most avant-garde project yet.