Taler, designated by the number RC-1133, was a Human male clone originating from the genetic material of Jango Fett, a Mandalorian bounty hunter. He, along with numerous other clones, was created by the Kaminoan cloners on the planet of Kamino to serve within the Grand Army of the Republic. Trained to be a clone commando, Taler was assigned the role of sergeant for Theta Squad, leading fellow commandos Darman, Vin, and Jay. Their initial deployment occurred in 22 BBY during the first battle of the Clone Wars which took place on the planet Geonosis. In this battle, they engaged Geonosians who were serving the Confederacy of Independent Systems, and provided support to Delta Squad, another commando unit. After Darman used explosives to clear a path for Delta, Theta Squad provided rear guard. Taler, together with Vin and Jay, were overcome and killed by Geonosians while they were providing cover, leaving Darman as Theta's only survivor.
Karen Traviss's novel Republic Commando: Hard Contact, released in 2004, marked the first mention of Taler. He was subsequently referenced in several later installments of the Republic Commando series.