Gerber himself, along with Man-Thing, were integral in defeating Thog on Therea in his first attempt to take over the universe.Chris Claremont, in the form of Man-Thing, defeated him in his second.
Some commentators have noted that Thog is modest enough to wear shorts. This is only the case in his subsequent appearances. In his first appearance, he was initially bat-like, and when harmed by Man-Thing. Thog later took on a more human form, and only shadows and angle choices protected his modesty.
Thog, along with Mephisto and Satannish, were alleged to be manifestations of Satan's evil and power. However, he is autonomous from said beings with a unique appearance, personality and traits.