Trip

 was a locator bot from the planet Fynrak Gamma that the Thirteenth Doctor met inside a pocket universe.

While the Doctor was attempting to find Yaz inside the pocket universe, she met Trip as one of the few survivors of the butterfly man's collection, due to being a robot. The Doctor rescued him and used his perfect directional circuits to locate Yaz, which he did with ease, and then to find a way back to the main universe. Trip found the power source at the exact centre of the dimension, allowing the Doctor to send everyone home.

Trip was the last one the Doctor said goodbye to as the pocket universe collapsed, but she used his powers to find her way back to Hydra Hall before he broke up. Using the butterfly man's net, she recovered his parts as she returned through the portal and rebuilt Trip to stay with Vera Parker as her robot butler. (COMIC: Hydra's Gate)