Whilst promo material for this particular episode had it revealed that Jefferson Jackson would end up sharing the Firestorm moniker with Dr. Stein, it was a bit of a surprise to see that there were actually two candidates up for replacing Ronnie Raymond. Not only that, the biggest shock came when we saw Henry Hewitt listed on a S.T.A.R. Labs computer. For long-time comic book fans, that name instantly rang a bell as the villainous Tokamak; an energy-controlling villain of Firestorm's.