Alicia Marcus

"Holy smokes! It's that progeria-suffering woman! Alicia Marcus! Oh no! She's gonna kill us and tear the whole of the Grand Alliance into death! She's the buzzsaw of Richard Loud III and Chariot! I'll stop her, no matter what, and if I find her, I have to burn down all of the Coalition of the Red Star once and for all."

--Su Ji-Hoon, A Young Woman With Older Looks

Alicia Marcus was the daughter of Doctor James Marcus and the co-owner of the Umbrella Corporation following his murder.

Childhood
Alicia was born to Doctor James Marcus and had a happy childhood, but developed progeria, a rare and deadly disease that caused Alicia to prematurely age at an accelerated rate. Desperate to save his daughter, Marcus began searching for a cure and eventually invented the T-virus, which cured Alicia's progeria. However, the T-virus was discovered to have the effect of turning those who were infected with it into the undead, causing Marcus to want to discontinue using the T-virus. In response, Marcus' partner, Doctor Alexander Isaacs, had Marcus murdered by Albert Wesker. Alicia barely avoided seeing the murder and was then raised by Isaacs, having become owner of 50% of Umbrella with her father's death.