The 7D's great grandfathers are the grandfathers of the 7D's grandfathers and the great grandfathers of the 7D. They are the founders of the mine and build their cottage on top of the tallest hill in the mountains, and before Jollywood was founded, they battled their greatest enemy of all known as the Wizard of Gloom who was Grim Gloom's great great great great grandfather. His primary goal is to steal the rainbow jewel but he was defeated by the original 7D before their grandsons founded Jollywood and before their great grandsons protected Jollywood, They were never seen or they might've passed away.

Great Grandpa GrumpyEdit

Great Grandpa HappyEdit

Great Grandpa SneezyEdit

Great Grandpa SleepyEdit

Great Grandpa DocEdit

Great Grandpa DopeyEdit

Great Grandpa BashfulEdit