Super H : Horatio, especially during his dramatic escapes without injury.
Retroactive Recognition: Closer to Simultaneous Recognition: Adam Baldwin got famous playing Jayne on Fire Fly, but while it was airing and before it had become a cult classic, he was running a radiation response team in a first-season episode of CSI: Miami.
Similarly, Kim Coates played recurring villain Ron Saris in seasons six and seven just as he was finally gaining some mainstream recognition as Tig Trager in Sons of Anarchy.
Hilariously, there's an episode where he accidentally kills Juice (Theo Rossi)!
And Colby Granger hit someone with his car during the hurricane evac.