Liso was an Ismetch Betrushian. He helped the Seventh Doctor, Bernice Summerfield and Ace fight the attack on Betrushia by the Chapter of Saint Anthony. He was resettled by the Doctor with the other surviving Betrushians on Massatoris. (PROSE: St Anthony's Fire)

Liso was one of the guests at Bernice Summerfield and Jason Kane's wedding in Cheldon Bonniface on 24 April 2010. (PROSE: Happy Endings)

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