Peter Cushing as Grand Moff Tarkin. George Lucas killed this character off way too early. Cushing played this ruthless officer to a T. It's also ironic that Cushing's bone structure and sunken cheeks bear a striking resemblance to the helmet of the later character Boba Fett.
Conan Antonio Motti was an Imperial officer who served aboard the Death Star as the head of Naval operations during the Galactic Civil War. Born into a powerful and wealthy family on Seswenna, he entered Imperial service, rising rapidly through the ranks of the Imperial Navy.