My favorite example of this guy is the scientist in War of the Worlds (an excellent 50's sci-fi movie BTW, not b-grade at all).Djeta Thernadier said:Or the dashingly handsome science guy (ala many a 1950's B movie) who has the sole brainpower and strength to take down the nasty (or cheesy) alien beings from mars. Often B movie scientists are working for Nasa.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.