Cal Henderson | |
|---|---|
 Cal Henderson in 2010 | |
| Born | Callum James Henderson-Begg 17 January 1981 (age 43) |
| Nationality | British |
| Occupation(s) | computer programmer, author |
Callum James Henderson-Begg (born 17 January 1981), known as Cal Henderson, is a British computer programmer and author based in San Francisco.