The 18-year-old actor, who played a swimmer in the drama Pride
, is the youngest of Diana's five children. He took his mom's name; Dad was businessman Arne Naess.
Named 2007's Miss Golden Globe, Jack's daughter, 17 (Mom is Rebecca Broussard), appeared in Click
with Adam Sandler.
A budding model, Lenny's 18-year-old daughter with Lisa Bonet will appear in an upcoming Jodie Foster movie.
Will's 14-year-old son with first wife Sheree Zampino appeared on All of Us
, his father's sitcom on The CW.
Mariel's 19-year-old daughter (that's Ernest's great-granddaughter) with husband Stephen Crisman is a Ford model.
Robin's daughter, 17, with wife Marsha acted in the 2004 drama House of D
alongside her father.