I have a couple suggestions for you that I think would fit well with what you've been doing.
Martin Landau(not sure that's spelled right) and Barbara Bain from space 1999 lab coats or vault uniforms would probably be the most fitting.
I can't remember the actors name but he played Apollo on the original battlestar galatica and Dirk Benedict from the same show in pilot uniforms(they were both viper pilots) possibly Lorne Green and John Colicos could fit as well.