

He gave Superman's greatest foe a soulful, human complexity that redefined the character for a generation of TV viewers.
Michael Rosenbaum grew up in New York and Indiana, a self-described class clown who channeled his energy into performing. After studying theater at Western Kentucky University, he moved to New York City, landing commercial voiceover work that became his financial bedrock. His big break came not from a heroic role, but from a villainous one: the young Lex Luthor on 'Smallville.' Rosenbaum's portrayal was a revelation, layering charm, vulnerability, and a tragic arc beneath the bald head and future evil. He played the role for seven seasons, becoming the definitive live-action Lex for many. After leaving the show, he built a varied career in indie films, voice acting for animated series like 'Justice League,' and launching the popular podcast 'Inside of You,' where his easygoing interview style disarms guests. He returned to the Superman universe decades later, voicing The Flash in animated projects and even reprising Lex Luthor for the 'Smallville' finale and the 'Crisis on Infinite Earths' crossover, cementing his legacy in that world.
1965–1980
The latchkey kids. Raised during divorce, recession, and the end of the Cold War. Skeptical, self-reliant, media-literate. They invented indie culture, grunge, and the early internet — then watched the Boomers take credit.
Michael was born in 1972, placing them squarely in the Generation X. The events that shaped this generation — economic uncertainty, the end of the Cold War, and the rise of personal computing — shaped the world they entered and the choices available to them.
The biggest hits of 1972
#1 Movie
The Godfather
Best Picture
The Godfather
#1 TV Show
All in the Family
The world at every milestone
Watergate break-in; last Apollo Moon mission
Star Wars premieres; Elvis dies
Live Aid concerts raise money for Ethiopian famine
Pan Am Flight 103 bombed over Lockerbie
Hubble Space Telescope launched; Germany reunifies
European Union officially established
Euro currency enters circulation
Curiosity rover lands on Mars; Sandy Hook shooting
Russia invades Ukraine; Queen Elizabeth II dies
He is an accomplished voice actor who provided the voice for the DC villain Wally West/The Flash in the 'Justice League' animated series.
Rosenbaum shaved his head for the role of Lex Luthor and has kept the look for much of his career since.
He was a champion wrestler in high school and still incorporates athletic training into his routine.
Before acting, he did voiceover work for hundreds of television commercials.
“I never looked at Lex as a villain. I looked at him as a guy who was severely damaged and misunderstood.”