GL Rond Vidar

The Green Lantern Rond Vidar first appeared in Adventure Comics #349 (October 1966), and was created by Jim ShooterMort Weisinger and Curt Swan. He's the Green Lantern of the future. Sent to live with a family on Earth, Rond proved to be a genius at temporal theory. He created the Time Cube, a device which can transport its contents in time. The Time Cube later proved indispensable to the Legion, who used it to stop Universo from taking over the world. Soon the Legion made Rond an honorary member and he continued his research, collaborating on many experiments with the super-intelligent Brainiac 5At some point in Rond's career, the Guardians of the Universe recruited him to be a covert member of the Green Lantern Corps, since Green Lanterns were banned on Earth at the time. 
The BG is from a DC Comics wallpapers website. I only went over it a bit.
Yeah, as you may have noticed I added the mask. Just having fun with character designing. 
If he IS a covert GL, I thought what about the classic Green Lantern mask? It looked cool to me, so I left it alone, regardless than the original character doesn't wear one.
More to come...