Finally made my mission impossible oc! (yes hes a self-insert idgaf)
Allen Bryn
Lead gadget designer at the IMF. He joined as a UI designer around 2006 (MI3) and since has been promoted. He became good friends with Benji since the very start of his employment and they bounce silly tech ideas off of each other. By the time of the Kremlin bombing, Allen has worked closely with Ethan and his team to understand what gadgets and gear may be needed and is the reason we see so many new (though somewhat unreliable) pieces of gear. He finally becomes tech lead right before the IMF is shuttered and is forced to take a job at the CIA fixing up trashed drones from failed operations. He and Benji stay friends as a way to not go crazy during the 6 months of radio silence from Ethan.
I haven't figured out the rest of his lore but I like what i have so far!