Hélène

Hélène arrives in Carolyn's orbit as a cool, immaculately dressed unknown, someone with connections that reach further than anyone at MI6 wants to admit. She asks quiet questions, gives little away, and seems entirely unbothered by the chaos swirling around Eve and Villanelle. Composure is her whole method.

Camille Cottin plays her like a held breath — every line delivered with a faint, knowing amusement that makes you distrust her instantly and want more of her anyway. The show gives her almost no backstory, and Cottin turns that blankness into menace, letting silence and a raised eyebrow do the work exposition usually does.