Greg Sobieski goes by Sobie.
Leelee Sobieski goes by Lee.
Greg Sobieski's birth name is Gregory Michael Sobieski.
Greg Toback goes by Greg.
Greg Fuller goes by Greg.
Greg McWhorter goes by Greg McDeath.
Greg Kritikos goes by Greg The Greek.
Greg Bernhard goes by Bernsie.
Greg Polisseni goes by Poli.
Greg Shamie goes by Sham.
Greg Sigurdson goes by Ziggy.
Greg Valentine goes by The Hammer.
Greg Tidman goes by Tiddy.