Formerly a charming football player, he becomes a hardened soldier grappling with guilt and driven by the need to protect those he cares about in the aftermath of the invasion.

A mysterious and complex figure who, despite an alien origin, displays unexpected empathy and forms a deep connection with Cassie, challenging his original directives.

Cassie's young brother, whose innocence and vulnerability become central to motivating and uniting other characters in their survival efforts.