Definition from The Star Trek Encyclopedia: A Reference Guide to the Future 2nd Edition...

A counselor is a Starship officer responsible for the emotional well-being of the ship's crew. A Counselor's duties included providing individual guidance and advice to crew members, as well as periodic crew performance evaluations, usually performed with the ship's executive officer or other department heads. A counselor is also expected to provide advice to the ship's captain on command decisions.

Deanna Troi, Ezri Dax, Astall and Phillipa Matthias have all served as Starfleet counselors.

Morgan Bateson had at least one session with a Starfleet counselor, Bailey while adjusting to life in the 24th century, after emerging from nearly 80 years in a temporal causality loop. (TNG comic: "Out of Time")

counselorsEdit

• Ezri Dax
• Guinan
• Telnorri
• T'Lana
• Deanna Troi
• Hegol Den
• Huilan Sen'kara
• Pral glasch Haaj

Guinan, though not officially a counselor, is listed as an unofficial one according to Deanna Troi (via a report in Guinan's personnel file); this information is found at Startrek.com.

ConnectionsEdit

• Counselor article at Memory Alpha, the wiki for canon Star Trek.
• Counselor article at Star Trek Expanded Universe, the fanon Star Trek wiki.