George Talbot is the son of Brigadier General Glenn Talbot. He is apparently a boating enthusiastic, to the undisguised disgust of his Army dad.
In The Inside Man, George is abducted by Gideon Malick, who was threatening General Talbot to harm his son, in order to coerce his father to betray Coulson. The general and the director manage to save the boy, however, and largely turn the tables on Hydra, with the invaluable aid of Carl Creel.
As of The Inside Man, George is 12 years old.