His father, Leon, was a teacher, and his mother, the former Lilyn Fuchs, worked at Johnson & Johnson before the family moved to Long Beach, Calif., when Marty was 12.
Tema isa Leon oli õpetaja ja ema, neiupõlvenimega Lilyn Fuchs, töötas ettevõttes Johnson & Johnson, enne kui pere kolis Long Beachile Californiasse, kui Marty oli 12.