Billy Gibbons/List of Appearances

Appearances

Season 1

• The Man in the Fallout Shelter

Season 2

• Stargazer in a Puddle

Season 4

• The Science in the Physicist

Season 5

• The Beginning in the End

Season 6

• The Killer in the Crosshairs

Season 7

• The Twist in the Twister

Season 10

• The 200th in the 10th