As all other clones of the Republic, Sicko was cloned from the genetic template of the human bounty hunter Jango Fett and born on the planet Kamino. Sicko was 1.83 meters (6 ft) in height, weighed eighty kilograms, and had tan skin. He was implanted with a behavioral modification biochip at birth to ensure that he would not resist certain orders.
Sicko debuted in the Hotshots and Aces II Reinforcements Pack of Fantasy Flight Games' Star Wars: X-Wing Second Edition miniature game that was released on November 25, 2022. Sicko originated in the Star Wars Legends continuity, appearing in the 2006 novel Republic Commando: Triple Zero, written by Karen Traviss.
Sicko debuted in the Hotshots and Aces II Reinforcements Pack of Fantasy Flight Games' Star Wars: X-Wing Second Edition miniature game that was released on November 25, 2022. Sicko originated in the Star Wars Legends continuity, appearing in the 2006 novel Republic Commando: Triple Zero, written by Karen Traviss.