Glocken was a Sakiyan of male gender who worked as a bouncer. He could be found at Merl's, a cantina located in the Old Town section of the spaceport Muracie on the planet Centares during the Imperial Era. Along with his partner Uri, Glocken acted as an enforcer for the shady dealings of Merl, the cantina's owner, who specialized in hiding desperate individuals willing to pay for his services. Glocken was a specialist with his heavy blaster pistol and had a reputation for quickly drawing it if Merl was threatened. In the year 0 ABY, the notorious cyborg bounty hunter Beilert Valance came to Merl's while searching for Tyler Lucian, a Rebel deserter whom Merl had helped to hide on Centares. When Valance threatened Merl to get information, Glocken and Uri both intervened to defend him, but the quick-drawing hunter immediately shot them both down.
The first appearance of Glocken was in Star Wars (1977) 29, which was written by Archie Goodwin and released in 1979. Carmine Infantino provided the illustrations for this appearance. Although his species was initially not identified, Glocken's species was later revealed to be Sakiyan in the Star Wars Roleplaying Game adventure seed Triplet Threat in 2003.