Auto-translated
Petya Ivanov Appolinariyevich. Or Katerina Ilyinishna (specifically with an "Sh" in her name) Sinkhrofazotronskaya.
Perhaps a nickname could be chosen, based on which several puns could be created. I can't help with this, as wordplay is beyond my capabilities.
P.S. Aha. The main character is Volodya-da-Morpheus, and the villain is Harry Shprottervmasle.