Hayridge also played Hilly, the male Holly's female opposite from a parallel universe in the Series II finale "Parallel Universe". The story explanation for Holly's change between the episodes was that Holly had fallen so madly in love with Hilly that he transformed his face to resemble hers as an act of affection. She also got a unique chance to be seen from the neck down when she played one of Ace Rimmer's lovers (a parallel universe, human version of Holly) in "Dimension Jump"; in the commentary Hayridge expressed disappointment that her uttering of Ace's catchphrase "What a guy!" was the only one that was cut from the episode.