Sketch / Legends " Sketch " was the nickname of a clone trooper who served in Clone Sergeant Slick ' s platoon during the Clone Wars . In 22 BBY , he was dispatched with a Jedi - led contingent of the Grand Army of the Republic to liberate the planet Christophsis from the Confederacy of Independent Systems . Sketch joined his unit on reconnoitering the planet for a strategical ambush site , but the Confederacy was able to ambush the Republic forces . After the clone troopers returned to base , Sketch and fellow soldier Punch went to the mess hall . When Clone Captain CT - 7567 and Clone Commander CC - 2224 interrogated the members of Slick ' s platoon to locate a possible Confederate spy , Sketch vouched for trooper Jester , and Punch and Sketch served as each other ' s alibis . Trooper Chopper claimed to have immediately gone to the mess hall , but Sketch objected and stated that he had come in later . However , Sergeant Slick himself was later revealed to be the turncoat and was apprehended . Biography . The clone trooper nicknamed " Sketch " was a clone of bounty hunter Jango Fett , born on the planet Kamino to serve in the Grand Army of the Republic . During the Clone Wars , he became a member of Clone Sergeant Slick ' s platoon of troopers . In 22 BBY , in the seventh week of the war , Sketch was dispatched with a contingent of the Republic Grand Army — under the command of High Jedi General Obi - Wan Kenobi and Jedi General Anakin Skywalker — to liberate the planet Christophsis from the Confederacy of Independent Systems . After their arrival on Christophsis , Slick ' s unit reconnoitered the planet and located a double - towered business complex as a suitable site from which to ambush the Confederate droids . While returning to the Republic base , the platoon came across a group of B1 battle droids that were attempting to clear a major boulevard of Christophsian refugees . When the battle droids found a crippled Christophsian and proposed killing him , the clones intervened and eliminated the droids before returning to the base . Later , Sergeant Slick ' s platoon was stationed in the business building ' s south - facing tower with General Kenobi and Clone Commander CC - 2224 , while Skywalker and Clone Captain CT - 7567 were based with their soldiers in the parallel north tower . The Republic troops prepared to attack the Confederate droids below , but the approaching droid column unexpectedly split in two , and battle droids arrived in the south tower and ambushed the clones . Skywalker and his men arrived in the south tower to reinforce Kenobi ' s group , and after taking a turbolift to the roof of the tower , the Republic forces escaped in clone pilot Hawk ' s LAAT / i gunship . After the Republic forces had returned to their base , Sketch and fellow platoon member Punch went to the mess hall , which they habitually frequented . During investigations regarding the possibility of a Confederate spy amongst their ranks , CC - 2224 and CT - 7567 — nicknamed " Cody " and " Rex , " respectively — traced an irregular wavelength in external communications to Slick ' s barracks . Suspecting that one of the sergeant ' s men was the enemy agent , the two clone officers called the platoon back to its quarters to individually interrogate its members . Sketch vouched for the nervous Jester and verified his alibi , and Sketch and Punch supported each other ' s claims that they had been in the mess hall . When trooper Chopper stated he had also been in the mess hall with them , Sketch refuted his claim . With encouragement from Cody , Sketch revealed that Chopper had not arrived to the mess hall until later in the evening . However , Slick was eventually revealed to be the spy , and escaped before severely damaging the Republic ' s gunships , AT - TE walkers , and weapons depot . When Slick was spotted running into the base ' s command center , and Rex and Cody ordered Slick ' s platoon to secure the perimeter . The two clone officers later managed to apprehend Slick . Personality and traits . A Human male , Sketch had tan skin , black hair , and yellow eyes and stood 1 . 83 meters tall . He had a tattoo of the Aurebesh letter Senth , or " S , " above his left eye . During the Battle of Christophsis , he frequented the Republic base ' s mess hall with fellow trooper Punch to the point where it became a habit . In the course of investigations into a possible traitor within his unit , Sketch verified Jester ' s claim and noted his fellow trooper ' s " obsession " for always cleaning his blaster after every battle . His keen observation skills helped Cody and Rex eliminate suspects and zero in on the real traitor . When Chopper claimed to be in the mess hall , Sketch objected to his statement but then stopped , only continuing with persuasion from Cody . Sketch was later shocked when his own sergeant , Slick , was revealed to be the turncoat . He was trained for combat , and his clone armor ' s greaves were dingy with grime from fighting . Behind the scenes . Sketch first appeared in " " , and went on to appear in " The Hidden Enemy , " the episode of the ' 2008 – 2009 into which the comic led . In the episode , he was voiced by Dee Bradley Baker , who provided the voice for all of the series ' clone trooper characters . Sketch ' s model was later reused for clone trooper Scythe in the episode " Brain Invaders . "