75 is a zinc-colored HAN-S-lookalike with a tea green-colored mouth-like bit on their face and is one of the minor characters in WALL•E. They are one of the robots aboard the Axiom.
WALL-E[]
A reject one is seen in the Repair ward, with a Red boot on their head. After WALL-E accidentally demolished the switch with EVE's plasma cannon, they were freed, just like other robots do in the repair ward (i.e. PR-T, 947, 3142, POW-R, CART-IS, etc.).