In the two-part episode ‘The Menagerie’, the Talosians try to make Vina (Susan Oliver) irresistible to Captain Pike by presenting her to him in various guises: here he sees her as an Orion slave girl. So Marta (Yvonne Craig) in ‘Whom Gods Destroy’ was the first ‘real’ Orion slave girl to appear in Star Trek.
This sequence and a lot of the footage was recycled from the unshown original pilot ‘The Cage’.
In the days before airbrush makeups, Fred B Phillips achieved Vina’s look with hand-applied greasepaint. Besides the need to constantly touch up the makeup, the makeup tests were a trial: as the story is told nobody informed the processing lab that her skin was meant to be turquoise so they kept hand-correcting the colour back to normal skin tones causing some consternation when the footage of the makeup tests came back.