It's the real last name of Nicolas Cage--& of his famous uncle
He adopted the name Luke Cage when he set up his Hero for Hire ... in the 
late 1970s to separate his career from that of his famous uncle,... [DOC] [TLE] 19 Celebrities Whose REAL Names May Surprise You - Moviepilot [PAR] Oct 4, 2015 ... Not wanting to piggyback off the success of his famous uncle, Francis Ford 
Coppola, Nicolas Cage decided to adopt the last name 'Cage' as a... [DOC] [TLE] Nicolas Cage Celebrity