Checkers was a clone trooper that served in the Clone Wars. he was born on Kamino, in the year 32 BBY, like all his brothers. The trooper received basic training and upon graduation, he was assigned to Laser Company under the command of Jedi General Kit Fisto.
"Checkers, can I ask how you got here? I mean, how did you get assigned to Torrent Company?" "I requested a transfer. Used to be in Lazer Company, under General Fisto."
―Jedi Commander Ahsoka Tano and Checkers
During his time in Laser Company, they were deployed to Kessel, to fight against an Anti-Republic force. By the end of the battle, Checkers was the only surviving clone trooper of the company, and he was still badly wounded. After the battle, Checkers asked General Fisto for a transfer to Torrent Company under the command of General Anakin Skywalker and Commander Ahsoka Tano. This marked the fragmentation of the original Lazer Company in 21 BBY.
"He might be a newcomer to Torrent Company, but he wasn't a greenie clone."
―Ahsoka Tano about Checkers
After joining Torrent Company, he and Commander Ahsoka Tano bonded, speaking about his time in Lazer Company and how he was wounded at the Battle of Kessel. He would soon see his first battle with the company and the 501st Legion, at the Battle of Kothlis. He fought alongside Tano and CaptainRex. He survived the battle and would continue to serve with the company cleaning up the surface.
"Is that when you were wounded? In the Kessel encounter?" "That's right."
―Checkers and Tano
Checkers exhibited the traits a veteran of war would; with solace. When discussing the battle with Commander Tano, he only replied with short replies. Like Jango Fett, he possessed the traits of his "father", 1.83 meters, black hair and brown eyes.