(Senastional She-Hulk#54 (fb) - BTS) - James David was a teenage rebel in the 1950's who often became drunk and exploded into violent rages. His looks parlaid him into low-budget films such as "The Rumbler" and "Rebel With A Pause" as his lawyer kept him out of jail for causing bar fights. One night in a drunken stupor, David struck a young boy with his car and crippled him for life. Los Angeles County Deputy Morris Walters arrested David, but he made bail and blamed Walters for ruining his career. Driving home from jail, David vanished when his car was swallowed up by an inexplicable earthquake. The notoriety of his disappearance made him a bigger celebrity than his acting career and overshadowed his criminal past.

(Sensational She-Hulk#52) - Over thirty years later, James David returned having not aged a single year for the time he was missing. Still harboring a vendetta on Walters (who was now a sheriff), he used his earth-control powers to attack him but was subdued by Walter's daughter, Jennifer Walters, the She-Hulk. Her powers in remission since her encounter with War Zone, the She-Hulk was buried alive by the powers of the Rumbler.

(Sensational She-Hulk#54-55) - Hearing how Sheriff Walters survived, the Rumbler went to his hospital for another attempt on his life. The She-Hulk returned to defeat him as they both lost control of their powers in a confrontation that escalated out of control. Unable to control his own earthquakes, the Rumbler ended up burying himself.