Family
- mother Fiona Jackson: Irish; divorced from John Carter; worked as a casting director on the ABC series "MacGyver" (1985-92)
- sister Aisleigh Jackson: Born c. 1983
- father John Carter: Divorced from Fiona Jackson; also has two sons from his first marriage
Companions
- Companion Diane Kruger: Began dating in June 2006; briefly split in 2007, but reunited shortly after
- Brittany Daniel: appeared together in "Dawson's Creek"; dated from late 1999 to 2000; no longer together
- Katie Holmes: acted together in "Dawson's Creek"; dated briefly in 1998
