Doctor Torvin was a Trill physician living on the planet Trill in the 24th century. He was employed with the Symbiosis Commission in 2371. When Jadzia Dax returned to Trill in that year to find out the cause of her strange hallucinations and she was having major difficulties, Doctor Renhol asked for Doctor Torvin to prepare a new host for surgery. Benjamin Sisko instead recommended informing Torvin to get himself a cup of raktajino as he wouldn't be needed. (DS9: "Equilibrium") This character was only mentioned in dialogue. The novella "Trill: Unjoined" gives him the first name Vadel.