San Heath

Carston Hawthorn's name at the time he returns from his first time-traveling journey.
He had been trapped for many years is some alien place where no one would say his name and this is what they end up calling him. by the time he kidnaps Jason for their final time traveling journey his name has been shortend to Zeneth.  
Carston's hair initially was dark purple, but is it has mostly greyed at this point it would apear sort of lavender.