Rivesh Mantilax

Rivesh Mantilax the husband of Seruba Velak.

Biography
Rivesh worked in genetic warfare for his kind. He was the designer of a genetic weapon that would kill all Viperox in the universe, to which the Tenth Doctor objected. When the Viperox went to war with his kind, his side lost. His wife, Seruba Velak, had already crashed in Roswell. As soon as he could, Rivesh went to find her. When his ship was shot down by the US Military near Area 51, he was saved by Night Eagle and hidden in a cave. Five years later, Night Eagle took the Doctor, Cassie and Jimmy to see Rivesh, who told them his story. Just moments afterwards, Colonel Stark walked in and tried to arrest him.

Stark locked up Rivesh in Dreamland, separated from Seruba Velak by a panel of glass. When his enemy Lord Azlok escaped from the Area 51 base, he attacked Rivesh. Seruba and the Doctor later wwent to Seruba's ship to find a cure for him.. Seruba revived Rivesh and he activated the device, which the Doctor modified with his sonic screwdriver to emit a high-pitched noise, amplified by the TARDIS, that could only be heard by Viperox. They fled from Earth to Viperon. Rivesh and his wife returned to their own home. (DW: Dreamland)