Later that year , he was cast as Eugene in the first season of Mork & Mindy .
Jacquet started his career as a child actor in 1978 in the films Return from Witch Mountain and Bloodbrothers .
Later that year , Jacquet was cast as Eugene in the first season of Mork & Mindy .
Jacquet started his career as a child actor in 1978 in the films Return from Witch Mountain and Bloodbrothers .