Sidney "Gaff" Levine
Sidney 'Gaff' Levine is a S.H.I.E.L.D. technician and recurring supporting character in Nick Fury's world, a reliable background operative whose expertise keeps the spy agency running behind the scenes amid Cold War-era super-espionage.
Born into the thick of Marvel's Silver Age spy-fi craze, Sidney "Gaff" Levine made his debut in Strange Tales #159 in 1967, courtesy of Roy Thomas and Marie Severin, stepping onto pages already crackling with Cold War intrigue and super-espionage. His forty-year presence across titles like Nick Fury Agent of S.H.I.E.L.D. and Nick Fury vs. S.H.I.E.L.D. speaks to a quiet durability — the kind of supporting player who quietly anchors the world around bigger names. Sharing panels with the likes of Nick Fury, Dum Dum Dugan, and Clay Quartermain puts him squarely in Marvel's most thrilling intelligence circles, and with two of his handful of appearances flagged as key collector issues, "Gaff" punches well above his page count. A compact but genuine piece of Marvel espionage history worth tracking down.

Top series
Covers through the years — 1967–2007
★ 1967
1988
2007 

