Pauley Perrette has used her platform to help gain extra support for Brittney Griner, following the news that her detention has been extended in Russia.MORE: Pauley Perrette looks unrecognisable with drastic hair transformation that sparks reactionThe NCIS star took to Twitter on Monday to share a rare message with her fans. It read: FreeBG, FreeBrittneyGriner, FreeBrittneyGriner.