Colonel Yōichi Takagi commands the Special Armored Battalion Dorvack within the Earth Defense Forces, leading its operations against the Idelian alien invasion. He oversees the unit’s strategic deployment and is responsible for creating and implementing both the Dorvack Team and its transforming Variable Machines as part of Earth’s defense. Takagi coordinates the three primary pilots—Masato Mugen, Pierre Bonaparte, and Louie Oberon—in direct combat against alien forces. Military bureaucracy favors powered armor infantry over his Variable Machines, creating organizational resistance, yet he persists in advocating for and utilizing these specialized mecha. The available sources do not detail his background, personal history, development beyond command, or portrayals in other media formats.