Zordon

Zordon is an inhabitant to Eltar and was the one who trapped Rita inside the space dumpster and also helped the Order of Meledian to imprison Ivan Ooze, he was also the the first mentor to the band of the Power Rangers, Zeo Rangers, and Turbo Rangers.

After the Ninja Fighters were defeated by the Machine Empire, they were sent back in time to retrieve the Zeo morphers from Zordon's command center But, they were spotted by Alpha 5 who altered Zordon he appeared and asked who they were they explained everything to Zordon and he realized that if the Machine Empire is back (or least told so) he told them they could use the morphers But, after the Machine Empire is destroyed they bring it back.

Later, they give them to Zordon as part of their deal.

Trivia

 * When the Fighters traveled back in time, it was not stated when they traveled to get the morphers though, it could presumed that it was between Season 2 and 3.