Yes, she is not the actress that played the Orion Slave girl you all know and love from the television show.
Rachel E Nichols played Gaila the Orion in the 2009 Star Trek movie.
Unfortunately they do not make a Galia Pop so this was the closest thing i could find for her to sign.
Yes its a real signature, i dont think there is a massive demand for Rachel Nichols autographs to the point where any person is willing to forge them for some quick cash and yes you could probably remove the signature with some nail polish remover if you so choose but i dont know how that could affect the plastic.