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Entertainment • Actor

Michael Rosenbaum

Michael Rosenbaum is an American actor, director, writer, producer, comedian, podcaster, and singer.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Michael Rosenbaum is an American actor, director, writer, producer, comedian, podcaster, and singer. He gained international recognition for portraying Lex Luthor on the television series *Smallville* and for voice roles in DC animated productions, including Wally West / The Flash. Born in Oceanside, New York, in 1972, he has also appeared in films such as *Urban Legend*, *Sorority Boys*, and the *Guardians of the Galaxy* sequels.

Early life

Michael Owen Rosenbaum was born in Oceanside, New York, in 1972. Sources describe him as an American actor from New York, later raised in the United States.

Acting career

Rosenbaum became widely known for playing Lex Luthor on *Smallville*. He also appeared in films such as *Urban Legend*, *Sorority Boys*, *Sweet November*, and the *Guardians of the Galaxy* sequels.

Voice acting

He has an extensive voice acting career, especially in DC-related animation. His best-known voice role is Wally West / The Flash in *Justice League* and *Justice League Unlimited*.

Other work

Rosenbaum has also worked as a director, writer, producer, comedian, podcaster, and singer. Later credits include hosting an interview podcast and directing *Back in the Day*.

Key facts

  • Rosenbaum gained international recognition for portraying Lex Luthor on *Smallville*.
  • He voiced Wally West / The Flash in *Justice League* and *Justice League Unlimited*.
  • His film roles include *Urban Legend*, *Sorority Boys*, and the *Guardians of the Galaxy* sequels.
  • He won a Saturn Award for his performance on *Smallville*.
  • He has worked as a podcaster and has also been credited as a director, writer, producer, and singer.
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Canadian context

Canadian readers may know Rosenbaum from *Smallville*, which aired widely in Canada, and from his roles in major Hollywood genre films and DC animated projects that also circulated extensively in Canadian television and home media markets.

Frequently asked questions

Who is Michael Rosenbaum?
He is an American actor and entertainer best known for playing Lex Luthor on *Smallville*.
When was Michael Rosenbaum born?
He was born on July 11, 1972.
Where was Michael Rosenbaum born?
He was born in Oceanside, New York, United States.
What role made Michael Rosenbaum famous?
His most prominent role was Lex Luthor in the television series *Smallville*.
What DC character did he voice?
He voiced Wally West / The Flash in *Justice League* and *Justice League Unlimited*.
Has Michael Rosenbaum won any awards?
He received a Saturn Award for his performance as Lex Luthor on *Smallville*.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Michael_Rosenbaum
    Supports: Best known for Lex Luthor on Smallville; roles in Guardians of the Galaxy Vol. 2 and Vol. 3; voice role as Wally West / The Flash; Saturn Award mention.
  2. Wikipedia (German) — https://de.wikipedia.org/wiki/Michael_Rosenbaum
    Supports: Birth name Michael Owen Rosenbaum; born July 11, 1972, in Oceanside, New York; American actor and voice actor.
  3. TV Insider — https://www.tvinsider.com/people/michael-rosenbaum/
    Supports: Birth date and place; raised in Newburgh, Indiana; career overview including Smallville and voice-over work.
  4. All American Speakers — https://www.allamericanspeakers.com/celebritytalentbios/Michael+Rosenbaum/419149
    Supports: Actor, producer, singer, comedian, podcaster; Back in the Day directorial and writing debut; Inside of You podcast; Saturn Award mention.
  5. TV Guide — https://www.tvguide.com/celebrities/michael-rosenbaum/bio/3030121046/
    Supports: Birth name, birthplace, and professions.