RL-4
RL-4, a Protocol droid, served the Galactic Republic as a unique emissary within the Office of the Supreme Chancellor under Leontyne Saresh during the Galactic War. While at Carrick Station in 3639 BBY, RL-4 reached out to a key individual, hand-picked by the Supreme Chancellor, with an invitation to join Captain Hardin aboard the Outrider for a mission destined for the Vyron system.
Behind the scenes
This droid, RL-4, is featured in Star Wars: The Old Republic, a video game, acting as the courier for the "Karagga's Palace" Operation. Initially located on Carrick Station, he was relocated to the Gav Daragon in Update 4.0.