Tsubarov is OZ and the Romefeller Foundation's Chief Engineer, and a key secondary antagonist during the first half of the series. A brilliant engineer and technical designer, Tsubarov was thuggish and brutal in his personal dealings, which put him on a collision course with both Treize Khushreneda and his adjutant, Lady Une. He is voiced by Richard Green in the English dub. He gets yelled at for not killing the Gundam pilots. He hates when Mobile Suits and he even hates them even more when the Mobile Suits become stronger than the Mobile Dolls.