Lex Luthor

Father would manipulate, intimidate & even physically hurt him as a child
1989: Was in Smallville when the meteor shower occurred, permanently lost all his hair
2001: Lost control of his car, accidentally hit & secretly rescued by Clark
Formed a friendship with Clark, secretly investigated how he survived the crash;
Their friendship ended after years of Clark hiding his powers from him
Tricked Lana into marrying him by faking a medical test, convincing her she was pregnant
Experimented on kryptonite infected people, created clones
Murdered Lionel by pushing him out a window, Discovered Clark's secret;
Severely injured, went into hiding, restored into a clone body
Right hand was the only visible damaged area, wore a black glove to cover it
Mortally stabbed Tess Mercer, who erased all of his memories using a neurotoxin
Gained control of LuthorCorp and all of its assets, renaming it LexCorp
Distrusted & hated Superman, seeing him as a potential threat to Earth
2018, Lex became President of the United States