. Lion-O (from Thundercats ) in Halloween Fairstival . Ookla the Mok in Halloween Potion-ma-jig . Necron 99 (from Wizards ) in Happy Hallow-day . Doc Brown from Back to the Future in Jibblies 2 . Dr. Zoidberg in Most in the Graveyard . Darunia in Doomy Tales of the Macabre .