Lor San Tekka
Lor San Tekka was the man who kicked off the Sequel Trilogy. He gave Poe the map to Luke Skywalker and after that, all hell broke loose. He was one of the only people who seemed to know the true identity of Kylo Ren and shortly after confronting him, was executed by his lightsaber.
His brief appearance made one wonder about his past. He didn’t appear to be Force-sensitive himself, but clearly is a believer of the Force and an ally of the Jedi. It would make a lot of sense to see him in the final season of The Clone Wars.
Lor San Tekka would be fairly young if he did make an appearance in Season 7 of The Clone Wars. He must be around 70 in The Force Awakens. Subtract 30 years from after Return of the Jedi and another 20 from the end of Revenge of the Sith and he’d be in his late teens or early twenties.
He’d look quite a bit different but could easily be worked into a storyline. Perhaps he is assisting the Jedi with some type of task, or maybe he runs into Ahsoka Tano. He would be intrigued by her ability to use the Force and could question her decision to leave the Order. Maybe his role is just to be a Jedi fanboy who hangs around the temple, hoping to get a look at one of the masters as they go about their business.
No matter the size of his role, it wouldn’t be that hard for the creators of The Clone Wars to put Lor San Tekka in a scene or two.