Metal Gear Solid 4 family tree

Colonel Roy Campbell
First appearance: Metal Gear 2: Solid Snake (MSX2)
Nationality: American
Affiliation: Philanthropy
Looks like: Daniel von Bargen
Voiced by: Paul Eiding
Biography: Took over FOXHOUND after Big Boss’s defection in Metal Gear. Slept with his sister-in-law.
What he’s doing in MGS4: He comes out of retirement to give Solid his final mission - to fly to the Middle East and halt Liquid Ocelot’s plans of world domination.