Ralif Redhammer
Legend
You weren't imagining it. There may have been other instances, but I primarily remember them doing this with their AD&D Trading Cards line. Art that clearly depicted a character from a module or novel was frequently re-used for a completely new character on a card.
I feel like I was annoyed by TSR doing this a couple times in the 2e era, but I can’t remember the specific irritants, so maybe I just imagined it.