The battle of Kaller
Shortly before Order 66 Janus was present when Separatist general Kleeve evacuated Kaller, leaving it to the Republic. When Jedi General Depa Billaba and her Padawan Caleb Dume reached his village, he explained that the Kallerans didn't see the difference between one general and another, which enraged Dume and two clone officers.
After Order 66
Kasmir found Dume several days after Order 66 was issued, hiding in Plateau City. He gave Dume a meiloorun fruit and agreed to let him stay the night on his ship, the Kasmiri. While aboard, Dume received a message calling him back to the Jedi Temple. Janus refused to bring him there, as he would not venture beyond the Outer Rim. Eventually, Janus left the Kasmiri to stop clone troopers from inspecting his craft. Seeing an opportunity, Caleb stole the Kasmiri and departed for Coruscant.
A new partner in crime
Several weeks later, Kasmir was in an alleyway being confronted by a group of criminals, led by fellow Kalleran, Tápusk. Kasmir had conned the group, and they were looking for payback. Kasmir planned to negotiate with them, while also cheating them out of more money. However, Tápusk and his men were suddenly ambushed by Caleb Dume, who had been roaming the streets in the time since he last saw Kasmir. The Jedi and Kasmir subdued the gang and let Tápusk go. Dragging Dume back to the Kasmiri, Kasmir chastised him for ruining his negotiations and losing a potential crew for his next job. As payback, Kasmir had Dume "volunteer" in their place. With the Jedi Knights being the most wanted people in the galaxy, Kasmir helped Dume change his appearance and told him to relinquish all that made him a Jedi -- even his name. The duos first job together was the theft of a cache of IG-RM droids from the estate of Gamut Key, a wealthy Kalleran who previously encountered Kasmir shortly before Order 66. During the heist, Kasmir and Dume were caught by Key and his men, one of whom was Tápusk. Attempting to negotiate his way out of trouble, Kasmir gave up Dume, revealing him to be a Jedi. Making a deal with Key, Kasmir let him and Tápusk keep Dume and claim the bounty on the boy, in exchange for the IG-RM droids. Using the droids, Kasmir later broke Dume out of his cell, and the two escaped. Over the next few months, Kasmir and Dume made a great team, flying from world to world, completing jobs and also remaining one step ahead of Clone Commander Grey and Captain Styles, who previously fought alongside Dume during the Clone Wars. During the time they spent together, Kasmir and Dume formed a true friendship and even considered buying a second ship, to allow them to split up in the event of one of them being captured.
Ambush on Lahn
Months after leaving Kaller, Kasmir had a new job lined up on the planet, Lahn. he job was to be a trade of stolen goods with Kasmir's contact, Jondo who, unbeknownst to them, was the former Separatist General Kleeve, now also in hiding from the Empire. Kasmir would provide spice, and in return Kleeve would give him a ship called Farbrooke's Hope, that the Kalleran planned to rename the Kasmiri II. The duo had not yet stolen the spice that they would be trading, however. Kasmir sent Dume to meet with Kleeve to confirm the trade, while he went off to obtain their half of the deal. While loading the stolen cargo aboard the Kasmiri II, Kasmir was found by Commander Grey. Grey interrogated him as to the whereabouts of Dume, but the Kalleran feigned ignorance. Grey then arrested him. After Grey received confirmation from Styles that Dume had been apprehended, Kasmir mockingly congratulated him for the successful murder of Dume. Grey responds that it is only about their duty to the Empire but slips and almost says Republic. Kasmir castigates him about his ignorance for his cause and Grey counters that he only has to follow orders. He leaves Kasmir and rendezvouses back at the freighter. Later, Kasmir and Kleeve somehow manage to escape and intercept the freighter in the Kasmiri and Farbrooke's Hope. Dume, who was still alive, managed to undo his bonds and eject himself out of an airlock and floated unconsciously in space. Unsure of whether Dume was dead, Kasmir pulled him in his ship. Dume was alive and Kleeve volunteered to run interference while he recovered. Low on shields and unable to outrun or outgun the freighter, Dume suggested a coordinated strike to create an opening for an escape. Meanwhile in the freighter, Grey is having doubts about Order 66 and the traitorship of Jedi General Billaba. Styles berates him for even considering such a thought. Grey sees the trio turn back as he reaches for a blaster and shoots the freighters control panel which disables their shields. Kasmir and Kleeve are surprised at the effectiveness of their attack unaware of what just transpired. They land back on Kaller for repairs where Dume suggests Kasmir establish a partnership with Kleeve as decides to discontinue theirs. Kasmir attempts to dissuade Dume and in the process calls him "kid". Dume reacts violently, kneeing him the stomach and throwing him against some rocks. Grasping Dume's conviction, he concedes and watches Dume climb aboard the Farbrooke's Hope, which he has renamed the Escape, finally addressing him as Caleb Dume.
After fifteen years, Kasmir was still working with Kleeve, and, one day, he helped a kid get away from stormtroopers, while in Lahn, without knowing that this kid was, no more no less, Ezra Bridger, the apprentice of his former partner and friend Kanan.
- Kanan: The Last Padawan (First appearance)