Professor Achilles Milo first appeared in Detective Comics #247 and was created by Bill Finger and Sheldon Moldoff.
Achilles Milo is a renowned chemist and criminal. Throughout his appearances, he transforms Anthony Lupus into a werewolf, takes control of Arkham Asylum, obtains the Silver Wheel of Nyorlath, contributes to the creation of Batman's Zur-En-Arrh personality, and gives the Human Flame innate pyrokinetic abilities.1
Professor Milo is an expert in chemistry and alchemy.
Professor Milo appears in a flashback in Scooby-Doo! & Batman: The Brave and the Bold.4 Years prior, he experimented on a faulty teleportation device that seemingly killed his colleague Leo Scarlett until Batman discovered Milo's work and defeated him.
Professor Milo appears as a non-playable character in Batman: Arkham Underworld, voiced again by Armin Shimerman. This version provides his services to supervillains, offering to provide gadgets, upgrade their abilities, and grant them new ones.
Detective Comics #247 (September 1957)Batman #112 (December 1957)Batman #255 (April 1974)Batman #326 - #327 (August - September 1980)Arkham Asylum: A Serious House on Serious Earth (October 1989)52 #41 (April 2007)Final Crisis Aftermath: Run! #2 - #4 (August - October 2009)Batman Eternal #16 (September 2014)Batman Eternal #44 - #45 (April 2015)Doomsday Clock #4 (March 2018) /wiki/Arkham_Asylum:_A_Serious_House_on_Serious_Earth ↩
"Dr. Achilles Milo Voices (Batman)". Behind The Voice Actors. Retrieved December 4, 2023. A green check mark indicates that a role has been confirmed using a screenshot (or collage of screenshots) of a title's list of voice actors and their respective characters found in its credits or other reliable sources of information. https://www.behindthevoiceactors.com/characters/Batman/Dr-Achilles-Milo/ ↩