Is G Man a Bad or a good Person? : r/HalfLife

Half-Life 2 Wallpaper - G-Man by Kommandant4298 on DeviantArt

Is There A Lore Reason Why He's Called G-Man? : r/HalfLife

Frontiers Nitric oxide synthase and its function in animal reproduction: an update

The various G-Men : r/HalfLife

In Half-Life 2: Episode 2 (2007), the G-Man wants Alyx to tell his father to “prepare for unforeseen consequences.” This is a nod to Valve's incompetency when they said episodic contents in

A more light & pose-accurate comparison of Old and New G-Man. : r/HalfLife

Wallace Breen, Half-Life Wiki

G-Man, Legends of the Multi Universe Wiki

My personal picks for A Half Life film series, I've based this more on who I think would do the best job rather than looks, although looks play a part in it