Operator
The Tenno child who survived the Zariman Ten Zero and channels Void power through a Warframe.
The child inside the dream
Margulis's work on Somatic treatment and Transference steadied the Operator's power. Asleep in the Reservoir, they inhabited a Warframe body as if it were their own, and did not remember being a child until The Second Dream. Warframe and Operator remain separate beings, yet together they form the single identity of a Tenno warrior.
Taking back their will
In The War Within, the Grineer Queen tried to seize the Operator's body through Continuity. Guided by Teshin, the suppressed Zariman memories opened, independent Transference was learned, and the Operator claimed ownership of their own body.
Their relationship with the Drifter
The Drifter is not a grown-up Operator from the future; they are the Eternalism outcome in which no rescue came on the Zariman. The two acknowledge one another in The New War and divide the work between them. The Operator's particular axis is Void power, a suppressed past reaching to Tau, and a childhood bond with Lotus.