Ed Klein appears in the novelization of the film *Mobile Suit Gundam: Cucuruz Doan's Island*. In the film itself, the character is unnamed and credited solely as "Staff Officer".

He operates as a staff officer for the Earth Federation Forces, involved in operational command during the campaign to retake Odessa from Zeon forces. In this role, he maintains direct contact with the *White Base* crew, transmitting orders from their superiors. His interactions with Captain Bright Noa exhibit an overbearing attitude, indicative of the rigid command structure and hierarchical pressures within the Federation military at this stage of the conflict.