Letum was an atypical Ferengi. He did not view the acquisition of wealth to be his primary motivator. He saw it as simply a tool to fulfil or make it easier to obtain his goals. However, he hated the idea of refunding money.
Letum was hired to kill the pirate Red Blur. Letum managed to fight his way through several of the Red Blur's cohorts before being seriously wounded by a disruptor blast from the Red Blur. He was left to die under the watch of two Antican members of the pirate group.
Letum activated his "Plan B" when the Red Blur attempted to leave via shuttle. There was an explosion at the aft of the shuttle that saw it crash back to the ground. Letum killed the two pirates left to watch him before he boarded the downed shuttle and making sure everyone but the Red Blur were dead before killed the Red Blur. Letum recorded evidence of the completion of his mission before leaving, taking the Red Blur's ornate personal disruptor with him. (Star Trek: The Farthest Star: "No Refunds")
- Originally the character was named "Krep" and was envisioned as a more humorous character, like Leck.