Sounds like you're refering to the old Hawk kits.. They had the same pilot in everything...
Monogram pilots in the early years were the same guy too, the one with the tab on his back, seat molded on, left arm up at his neck, and goggles down. He was in the Spitfire, Me 109, F4U-4, SBD, F4F, F6F, and Zero...
The P-51B, P-47D, and Mosquito had the same guy, with the B-2/Irvin Jacket, but he was pretty good, although I wish it was his right arm that was posable instead of the left one.
The P-39 was good, and a one-off, as well as the Stuka & Fw 190 figures, they were molded in German flight gear.
The BEST one is the P-51D pilot...