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Entertainment • Actor

David Krumholtz

David Krumholtz is an American actor known for film, television, and voice work.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated September 10, 2026|2 min read| Fact-checked

David Krumholtz is an American actor known for film, television, and voice work. He is best known for playing Bernard in *The Santa Clause* franchise, Charlie Eppes in *Numb3rs*, and Isidor Isaac Rabi in *Oppenheimer*.

Early life

David Krumholtz was born in Queens, New York City, in 1978. Public biographies describe him as having grown up in a Jewish family in New York.

Career

Krumholtz began acting in the 1990s and appeared in both film and television. He became especially known for recurring roles in *The Santa Clause* films and as Charlie Eppes on *Numb3rs*.

Notable roles

His best-known screen roles include Bernard in *The Santa Clause* series, Michael Eckman in *10 Things I Hate About You*, Goldstein in the *Harold & Kumar* films, and Isidor Isaac Rabi in *Oppenheimer*.

Public recognition

Krumholtz’s television work in *Numb3rs* and his recurring holiday-film role helped make him a recognizable character actor in American film and television.

Key facts

  • Born on May 15, 1978, in Queens, New York City.
  • He is an American actor.
  • He is widely known for portraying Bernard in *The Santa Clause* franchise.
  • He played Charlie Eppes in the CBS series *Numb3rs* from 2005 to 2010.
  • He portrayed Isidor Isaac Rabi in Christopher Nolan’s *Oppenheimer* (2023).
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Canadian context

David Krumholtz is known to Canadian audiences through widely distributed American film and television titles such as *The Santa Clause*, *10 Things I Hate About You*, *Harold & Kumar*, *Numb3rs*, and *Oppenheimer*.

Frequently asked questions

Who is David Krumholtz?
David Krumholtz is an American actor known for roles in film and television, especially *The Santa Clause* franchise and *Numb3rs*.
When was David Krumholtz born?
He was born on May 15, 1978.
What is David Krumholtz best known for?
He is best known for playing Bernard in *The Santa Clause* franchise and Charlie Eppes in *Numb3rs*.
What movie did David Krumholtz appear in in 2023?
He appeared as Isidor Isaac Rabi in *Oppenheimer* (2023).
Where was David Krumholtz born?
He was born in Queens, New York City, New York, United States.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/David_Krumholtz
    Supports: Birth date, nationality, notable roles, and career overview.
  2. IMDb — https://www.imdb.com/name/nm0472710/
    Supports: Birth place, family background, and career highlights.
  3. IMDb — https://www.imdb.com/name/nm0472710/bio/
    Supports: Birth place, early life background, and biography details.
  4. Broadway.com — https://www.broadway.com/buzz/stars/david-krumholtz/profile/
    Supports: Selected film and television credits including *Oppenheimer* and *Numb3rs*.
  5. TV Guide — https://www.tvguide.com/celebrities/david-krumholtz/bio/3000397112/
    Supports: Basic biographical details and profession.