Helly R.

Helena Eagan and Helly R. are fictional characters portrayed by Britt Lower in the Apple TV+ series Severance. Severance follows employees at the biotechnology corporation Lumon Industries that have undergone "severance"—a medical procedure that ensures they retain no memories of the outside world while at work and have no recollection of their job once they leave. This results in two distinct personalities for each employee: the "innie", who exists solely within Lumon, and the "outie", who lives their personal life outside of work.

Helly R. is one of the series' major protagonists, introduced as a rebellious and defiant employee of Lumon Industries, and later becomes a love interest to Mark S. A major plot twist in the series reveals her "outie" personality to be Helena Eagan; one of the overarching antagonists of the series, Helena is the cold and manipulative heiress and high-ranking member of Lumon.

Britt Lower's portrayal has received praise; she has been described as one of the show's breakout stars.