Oppo Rancisis was a Thisspiasian male Jedi Master in the Star Wars universe. He served on the Jedi Council during the Invasion of Naboo and the Clone Wars.
He was also one of the few who feared Anakin Skywalker, and believed he would be a threat to the Jedi. This ended up becoming true, when Skywalker fell to the Dark Side after being manipulated by Palpatine, who was secretly the Sith Lord, Darth Sidious.
Master Rancisis ended up surviving Order 66 and went into hiding, with The Grand Inquisitor noting he had hidden himself extremely well.