AJAX from Call Of Duty: Ghosts for Grand Theft Auto IV. By default it replaces Derrick McReary, but you can replace it with any other, just rename the files in the Ajax folder (GTA4 PED) to the name of any ped.
Installation:
Using the Spark IV or Open IV programs, import files from the Ajax folder (GTA4 PED) to componentpeds.img, along the path pc/models/cdimages