Kleyn Selid

Kleyn Selid was a colonel of the Army of the Galactic Empire in command of Mount Tantiss on the planet Wayland some fives years after the Battle of Endor. Young for his rank, Selid was quite frustrated when Grand Admiral Thrawn had assigned to him the task of temporary commander of the garrison stationed to protect Emperor Palpatine's hidden storehouse at Mount Tantiss, wanting, instead, to command troops in the field rather than from his office, behind a desk, something he came to call being a "glorified 'baby-sitter'".

In the final days of Thrawn's campaigns against the New Republic, the Grand Admiral came to view the clone Dark Jedi Joruus C'baoth as a bit of a problem and so was not displeased when the mad clone departed the fleet to "take command of his Empire" from Wayland. There, C'baoth forced General Freja Covell, who was to take Selid's post as commanding officer, into a state of dependence which faltered under the effects of the ysalamiri spread throughout the mountain facility, killing Covell. The morning after the general's arrival, Selid was alerted by an orderly telling him that Covell was dead. He immediately ordered a medical team to investigate only to find that large portions of Covell's brain had inexplicably simply shut down. Without hesitation, Selid contacted the Chimaera and reported the situation and the events of the day prior directly to Grand Admiral Thrawn, who in turn ordered Selid to put C'baoth under arrest and confinement, and to not allow Covell's personal company to troops to enter the facility. Though weary concerning the orders to lock-out the company of soldiers, he did what he was told.

Selid was more than likely present at the destruction of Mount Tantiss, but it is unknown whether he survived.

Rank theory
Dr. Curtis Saxton, author of Attack of the Clones Incredible Cross Sections and Revenge of the Sith Incredible Cross Sections, and creator of the Star Wars Technical Commentaries, has theorized that Selid may have possibly been of the rank of High Colonel. This would seem likely given the fact that Selid was actually a temporary commander of a post that was to be held by an officer of the general-class (i.e. General Freja Covell). Sources cite Selid as a colonel, but the term "colonel" is a relative shortening for the ranks of lieutenant colonel, colonel, and high colonel, so Dr. Saxton's theory is possible.