Echo

Lore
Former SAT operator Echo is known primarily for his horrible eating disorder. A full on bulimic, Echo is rarely able to leave the objective room due to having such low energy. For sustenance, Echo has a hovering drone which is able to retrieve bags of delicious McDonald's cheeseburgers from local destinations. Due to the prominence of McDonald's locations around the globe, Echo is able to operate in even the most remote regions of the world, with the exception of India.

Hibana, his SAT handler, was forced to join Rainbow Six when Blitz convinced Echo to join. Blitz did this by defeating Echo's arch-nemesis, the 国民健康保険, otherwise known as the NHI, in season three.