Graffaganda

Shawn is an unjoined Trill who lies about being joined with a symbiont and all the past lives/experiences that comes with that. Some unjoined Trills are also telepathic, he is NOT, but he also lies about that whenever he can, especially when it can get him into a case or a mystery.

Gus is half Betazoid, and has some trouble with his own telepathic abilities. Because of this and his only visual Betazoid trait being large dark eyes, many other telepaths assume he's human. He struggles to sense most emotions accurately (if at all), but is hyper sensitive to negative emotions around him, often leading him to "sympathetic crying". Despite his telepathic shortcomings, he doesn't seem to have any issue with his abilities in regards to Shawn. Neither of them are Starfleet, but his line of work often has him supplying pharmaceuticals to their medical divisions.

The Blueberry is a shuttle modified for long distance space travel, loaned to Gus by the company he works for. All of the company representative ships are the same model with the same specs, but only his is a striking blue.