|Affiliations||Amestrian State Military|
|Occupation||Military Police Officer|
|Unique Trait||Glasses, Severe facial structure|
|First Appearance||Manga Chapter 34 |
Episode 16 (2009 anime)
|Voice Actor||Rob Mungle|
In 2009 adaptation, there's an exclusive scene related to the manga plot where Douglas is interrogating Ross and shows her the bullet that killed Brigadier General Hughes. He reveals that it is the same type she uses and showing her the ammo requisition form he asks why she needed to order a new one. When Ross mentions that she fired a bullet while protecting Alphonse at Laboratory 5, however she finds there is no way to prove it since the facility was unmanned and is now a pile of rubble making it difficult to find a bullet. When Douglas brings up the fact that Ross was seen by eyewitnesses leaving the scene when Hughes was murdered, Ross finds it impossible since she was off duty visiting her parents, but the testimony of her parents or close friends cannot be considered creditable for an alibi.
Douglas reappears after Colonel Roy Mustang apparently burns Ross to an ashy skeleton, admonishing the Flame Alchemist for letting personal issues take him to such an extreme and stating that, thanks to the excessive damage, the identity of the corpse cannot be confirmed. His last appearance was in Chapter 35 when Roy and Lt. Hawkeye attempt to confuse the Military Police as to Scar's whereabouts so as to help Edward and Alphonse Elric lure out the Homunculi.
- Henry Douglas' name may have come from the American aircraft manufacturing company Douglas, once almost all character from the military has his surname as war vehicles.