From IDW Hasbro Wiki
Steven Witwicky, better known as Spike, is a maverick U.S. soldier. Despite his incredibly arrogant demeanor, his record of being right about Cybertronians has landed him a position in the elite G.I. Joe.
- Spike Witwicky is a longstanding Transformers human who originally debuted in the 1984 Generation 1 cartoon episode "More than Meets the Eye, Part 1". The IDW incarnation debuted in 2008's All Hail Megatron #5. His legal first name "Steven" is a new invention for IDW continuity; prior incarnations of the character have been treated as having "Spike" as a legal first name.
- Spike Witwicky (G1) at the TFWiki