Appearances 

• GI Joe 126

Parts used 

• Firefly (‘91)
• Guile (SF movie edition) head

No one really knows what Firefly really looks like.  The mastermind behind the Hard Master's death, Firefly is a master of disguise.  He is able to perform a specialized form of hypnotism on those near him, and their mind's are unable to distinguish his features unless he wills them to do so.  When he does allow those nearby to see a human face, it is usually one like that of a middle age man, almost average in appearance.  To further keep his true face hidden, Firefly would quickly turn his head so any photograph taken of him would be blurry.

Well, I had to use all those Guile heads for something!  Actually, the head does somewhat resemble Firefly's assumed appearance, although it is slightly out of proportion with the rest of the body.