Mitth'ras'safis was Mitth'raw'nuruodo's brother. Mitth'ras'safis made a great effort to keep his core name a secret for understandable reasons. You see, you make a Chiss core name by taking the little section between the apostrophes along with the one or two letters on either side. So in Mitth'raw'nuruodo's case, you would get "Thrawn". And in Mitth'ras'safis' case, you would get...Thrass. Every time Thrawn would introduce his brother at Chiss and Imperial press conferences, the entire audience would break out in laughter. This went on until he helped Lorana Jinzler and Jorj Car'das hijack Outbound Flight, saving the galaxy by preventing Chaf'orm'bintrano from capturing it.