Subject: Though Dennis' siblings were not written into his biopic, Dennis's older half-brother, Joshua Mason, 32, died of AIDS in 1987. A sister lives in the Chicago area, today. Their mom Rusty Tullis, 70, died in 2006, following a motorcycle accident.
"Rusty was not the PTA mother of the year. But she was the perfect mother for Rocky. She never made him feel sorry for himself." --Anna Hamilton Phelan, screenwriter of Mask