Lieutenant Feren Denken was a Matalinian male officer in Starfleet in the late 24th century, serving in the security department of the USS Titan in the early 2380s. (TTN novels: Taking Wing, The Red King, Over a Torrent Sea) In 2380, he worked at the transporter during the capture of an Orishan ship. (TTN novel: Sword of Damocles) In 2381, he led a security team that tried to stop Doctor Shenti Yisec Eres Ree when he attempted to kidnap Counselot Deanna Troi and her unborn child. (TTN novel: Over a Torrent Sea)