Henderson is a British security guard who appears in The Great Muppet Caper. Combining suspicion and gullibility in equal proportions, Henderson is employed as watchman for the Mallory Gallery in The Great Muppet Caper. Confronted by the Pizza Twins (aka Kermit and Fozzie), he reluctantly accepts their pizzas, brought as a decoy, despite his loathing for pepperoni.

Though identified in the credits only as "Guard," he identifies himself as Henderson, when querying the Pizza Twins about the name on the mysterious slip.