Kreinns was a male human, and an assistant director in the Federation Department of Temporal Investigations. In 2373, he was direct supervisor of DTI agents Gariff Lucsly and Dulmer. (TNG short story: "Gods, Fate, and Fractals")
- "Kreinns" is an anagram of "Skinner", the name of Scully and Mulder's supervisor on The X-Files.