Grandpa Max Tennyson Fan Casting for Ben 10 | myCast
Robert King
Published Mar 23, 2026
myCast Featured Story
by Joe Casey, Joe Kelly, Duncan Rouleau
Story added by reagancole on July 28, 2017
Ben Tennyson, a 10-year-old boy, discovers a magical device that can turn him into 10 different alien heroes, each with its own unique abilities. With this newfound power, Ben, Grandpa Max and cousin Gwen help others and stop evildoers - but that doesn't mean he doesn't cause some superpowered kid mischief once and a while.read more
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