Second Lieutenant Rebecca Catalina (レベッカカタリナ, Rebekka Katarina) is a soldier under the command of Lieutenant General Grumman at the East City Headquarters and a close friend of Riza Hawkeye. Though appearing in Bonus Chapter: Simple People and mentioned in Chapter 74 as part of Lt. Hawkeye's coded message to Roy Mustang, Rebecca's first real appearance comes in Chapter 83 when General Grumman sends her on a secret mission to Central City to relay information regarding the joint front between Eastern and Northern forces and The Promised Day to Mustang. She does this through Hawkeye, surreptitiously slipping a message into Black Hayate's collar as the two converse.