Lots of people don't get along with their father-in-laws. But when that father-in-law is partly responsible for turning you into a giant green monster where every time you stub your toe or someone cuts you off in traffic and you get really mad, things could become a little strained at Thanksgiving.
General Thaddeus E. "Thunderbolt" Ross is best known as the father-in-law of Dr. Bruce Banner, who sometimes goes by The Incredible Hulk. Ross was the head of the Gamma Bomb Project, which turned Banner into the hero that he is today. He takes it upon himself to try and kill the monster with the aid of his Army battalion the "Hulkbusters," and at one point MODOK. He has committed treason chasing the Hulk and has even been discharged from the military.
At one point, S.H.I.E.L.D. agent Clay Quartermain recruited Ross to merge with a lesser-known Hulk villain Zzzax. In the aftermath, the former General was fatally wounded. He realized his longtime foe was actually a force for good, and gave his blessing to Bruce and Betsy on his deathbed.
Over the last several years, Thunderbolt has been resurrected and is once again leading the crusade against the Hulk. His popularity has led to his inclusion in both Hulk films and he is currently involved (somehow) in the Red Hulk case in monthly comic books.
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