Characters of the Half-Life series

This is a list of characters in the Half-Life videogame series, which comprises Half-Life, Half-Life 2, Half-Life: Alyx, and their respective expansion packs and episodes. == Introduced in Half-Life and expansion packs == This section deals with characters that appear in Half-Life, Opposing Force, Blue Shift, and Decay.

Source: Wikipedia — Characters of the Half-Life series (CC BY-SA 4.0)