Mark Fraser Landon was adopted in 1956, aged 8, by 20-year-old actor
Michael Landon. Mark's biological mother was Michael's then-wife, Dodie Levy-Fraser. Landon appeared in three movies, including the CBS television movie
Us (1991), which was written and directed by Michael Landon shortly before his death in 1991. It aired a few months after Michael Landon died. Mark also had a small role as a
Navy SEAL in the 1997 movie
Goodbye America. ==Death==