Krok
Krok is a Decepticon soldier who debuted in the closing issues of Marvel's original Transformers series, introduced as part of a ragtag group of stranded Decepticons struggling to survive on a post-war Cybertron.
Debuting in the pages of The Transformers #76 in 1991, Krok arrived right at the twilight of Marvel's landmark Transformers run, a product of the celebrated creative partnership of Simon Furman and Andrew Wildman. This Copper/Modern Age figure has quietly persisted across an impressive 34-year span, turning up in Transformers: Regeneration One and beyond — a testament to the enduring pull of that era's storytelling. Krok keeps formidable company, sharing the page with heavyweights like Megatron, Galvatron, Shockwave, and fan-favorites Prowl and Jazz. A rare find with only a handful of catalogued appearances, Krok is exactly the kind of deep-cut discovery that makes digging through Transformers back issues such a rewarding adventure.

Top series
Covers through the years — 1991–2025
1991
2025 
