Actor best known for his roles as Charlie Salinger on the television show Party of Five and as Jack Shephard on the television show Lost.
After graduating from Columbia University, he interviewed for a job to sell stocks at Prudential-Bache.
He appeared in the films Vantage Point and We Are Marshall.
He married Margherita Ronchi in 1992. The couple has a daughter, Kyle, and a son, Byron.
He starred alongside Evangeline Lilly in the hit ABC series Lost.
