Jo-Anne Leach or Joanne Leach is a stunt artist known for her roles as Janus Prospero as Milla Jovovich's stunt double. She has been in this role since 2004's Resident Evil: Apocalypse, also appearing in 2007's Resident Evil: Extinction; 2010's Resident Evil: Afterlife and 2012's Resident Evil: Retribution.
Due to the preference for actors performing their own stunts, especially Milla Jovovich, it is harder to identify which stunts were performed by stunt doubles.
Leach was certainly used for a scene in Apocalypse where Janus runs through a corridor Raccoon City Hall being shot at by Umbrella helicopters. This was confirmed in the Symphony of Evil music video.