Greg Walker [Edit] By Sticky Facts Editorial StaffGreg Walker biography, ethnicity, religion, interesting facts, favorites, family, updates, childhood facts, information and more:What is Greg Walker's full name?Greg WalkerGreg Walker nickname(s):Greg Walker, Gregg Walker, William Greg WalkerWhat is Greg Walker's occupation?Stunts Tags: stunts Suggested Posts Beyoncé Knowles Facts Ariana Grande Facts Rihanna Facts Stephen Hawking Facts The Weeknd Facts Kit Harington Facts Harry Styles Facts Marlon Brando Facts