Leon

Leon is a resistance leader who appears briefly in Half-Life 2.

Half-Life 2
Appearing only in the "Highway 17" chapter, Leon runs the Resistance's Shorepoint base and is a friend of Alyx Vance. When Gordon Freeman approaches his base from Ravenholm, Leon is leading a squad against the Combine. A soldier under his command named Winston is wounded in the skirmish. He then alerts Alyx through radio to the fact that Gordon made it through Ravenholm alive, then sends him on his way with a Dune Buggy.