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Marvin White and his best friend Wendy Harris were created as teenage side-kicks to the Super Friends. They back the team up by providing moral support alongside their pet Wonder Dog. Eventually they were reintroduced in the DC Universe as caretakers of Titans Tower, making them members of the Teen Titans. In this continuity they are portrayed as genius computer experts and children of the super-villain Calculator. Marvin White was created by E. Nelson Bridwell, first appearing in the Super Friends episode The Power Pirate. (1973) His first regular DC Universe appearance was in Geoff Johns' Teen Titans (Volume 3) #34. (2006)