I watched the totally cheesetastic film, The Green Slime (1968) the other day. It stars:
Robert Horton as Commander Jack Rankin, best known as Flint McCullough on t.v.'s Wagon Train
And the gorgeous Luciana Paluzzi as Dr. Lisa Benson, best known for her role as Bond Girl, Fiona Volpe in 1965's Thunderball, opposite the yummy Sean Connery
And of course, the lovely Green Slime! The slime goes nuts melting people, so it has to be killed - but it gets outside the space station!
Commander Vince sacrifices himself to kill the nasty multiplying bugger
Dr. Lisa takes control, worrying about Commander Vince