The figures are all from the Alternative Armies SF line now to be sold under the "Ion Age" name. I bought some of those back in the 90s in a clearance sale, got others as payment for a painting commission, and thought that the general similarity made them suitable as pirates (i.e. a little bit "gang" uniformity, but individually different).
The figures (apart from the big guy) are roughly 30mm scale. I´ve also got a ton of the "Not-Space Marine" Templar figures, but since those don´t fit the pulp/retro scifi thing at all, I won´t paint them for this project.