Hahn will join fellow franchise newcomers Janelle Monáe, Dave Bautista, and Edward Norton, as well as returning star Daniel Craig.
Knives Out was released via Lionsgate in 2019, taking in $311.4 million at the box office on a $40 million budget.
In a massive $469 million deal, Netflix won the rights for two sequels and a readymade franchise.
Hahn, repped by Gersh, Lighthouse and Schreck Rose, became a fan favorite in Marvel’s Disney+ series WandaVision.