Garazeb Orrelios, commonly known as Zeb, is a supporting character in the Star Wars franchise. He is one of the last surviving members of his species and harbours a deep hatred towards the Empire because of the role it played in the destruction of his homeworld. He is part of a rebel group led by Kanan Jarrus and Hera Syndulla.
Steve Blum voices Zeb in the Rebels series, Rebels shorts and the third Disney Infinity game. Steve's naturally gravelly voice is a good fit for a grumpy, disgruntled alien rebel. The accent he gives Zeb also helps differentiate it from other gravelly-voiced Blum characters.
In Lego Star Wars: Droid Tales, veteran Ocean VA Brian Drummond took over. I find it extremely appropriate that Brian is the one to take over Zeb. Both he and Steve have been (amazing) Wolverines, and I've always considered Brian to be the Vancouver equivalent of Blum (even though I knew about Brian and his work for a long time before I knew about Steve). He sounds pretty close to Blum, although you can still hear that iconic Brian Drummond growl.
Steve gets my vote, but as I said, there is not a better choice out there for a replacement VA than Brian Drummond.