Czerka GE3-series Protocol Droid
Stew was the backup Astronavigator for the the Easy Lady XV. Its duties included cleaning, odd jobs, and infrequent translation. With the the Easy Lady XV impounded and Captain Shevel in custody, S2 has taken to loitering near the impound yard and following 0P8 waiting for instructions.
Stew is an older model. Like many protocol droids, he is wholly subservient and prone to oversensitivity. As a Czerka droid, he is built to withstand both abuse and lack of regular maintenance.