Allen Gregory's birth name is Jay Allen Gregory.
Gregory Akagi's birth name is Gregory Allen Akagi.
Greg Frucci's birth name is Gregory Allen Frucci.
Gregory Irvin's birth name is Gregory Irwin.
Gregory Mannino's birth name is Gregory Mannino.
Gregory Sims's birth name is Gregory R. Sims.
Gregory Slay's birth name is Gregory Scott Slay.
Gregory Tuzin's birth name is Gregory Francis Tuzin.
Gregory Vignolle's birth name is Gregory Paul Vignolle.
Gregory Ropert's birth name is Gregory John Ropert.
Gregory Terlecki's birth name is William Gregory Terlecki.
Gregory Sporleder's birth name is Gregory Michael Sporleder.
Gregory Alosio's birth name is Gregory Ryan Alosio.