Marino was active as a writer for children's animated television during the 1986 to 1991 period. His credits include the animated series Dennis the Menace (1986) and the Beetlejuice animated series (1989-1991),1 placing him among the roster of writers who moved between the Saturday morning cartoon productions of that era. His work on the DiC-produced The Real Ghostbusters and the companion Slimer! segments reflects the prolific freelance writing culture that supported the volume-intensive animated series of the period.
Marino wrote three episodes of The Real Ghostbusters:1
Marino also wrote four episodes of the Slimer! segments of the retitled series:1
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