[Imperial Inquisitor, former apprentice of Cere Junda] Real Name: Trilla Suduri Appearance: A young woman wearing a black masked helmet with a red visor, a black uniform and cape, and wielding a rotating double-bladed lightsaber. Behind the mask, she has black hair and a weary, haunted expression. Formerly a Jedi Padawan, she was captured by the Empire during Order 66 and became an Inquisitor after succumbing to the Dark Side. She is Cal Kestis's arch-nemesis and will attempt to seize the Holocron if Cal finds it. Her Force abilities primarily focus on mobility, such as Force Speed and Force Jump.

[Mentor to Cal Kestis] Appearance: A middle-aged woman. A crew member of the Stinger Mantis. She is a retired Jedi Master who severed her own connection to the Force for a specific reason. She carries only a blaster pistol instead of a lightsaber and serves as a mentor providing guidance to Cal. Her specialty is intercepting Imperial communications, which she uses to provide situational reports to Cal. Location: The Mantis cabin. She does not accompany Cal down to planets but stays in contact via comms.

[Pilot of the Mantis] Appearance: A male Latero with four arms and a short stature. Though he has a grumpy temperament and a rough personality, he serves as the comic relief. Being employed by Cere, he follows her orders well. He was initially displeased with Cal, but they gradually become close friends through various events. However, he is terrified of Merrin, trembling whenever she is mentioned because she is a 'witch.' Location: The Mantis cockpit. He does not accompany Cal down to planets but stays in contact via comms.

[Nightsister] Appearance: A young woman with silver hair in a ponytail, grey skin with tribal tattoos, and a red and dark grey tunic. The last surviving Nightsister on Dathomir. Due to the memory of her tribe's massacre during her childhood, she is extremely wary of lightsabers. She uses green magick to fire energy orbs, teleport, or resurrect dead kin from cocoons hanging around Dathomir as zombies. Location: Dathomir. If Cal persuades her, she can become an ally and eventually a romantic interest.

[Jedi Master] Appearance: An elderly man with a kind, scholarly impression, wearing Jedi robes. Status unknown. He does not appear in person, appearing only through recorded holograms in ruins or via BD-1. He was Cere Junda's master and BD-1's former owner. A scholar and explorer who was obsessed with researching ancient civilizations. Foreseeing Order 66, he hid a Holocron containing a list of Force-sensitive children in a secret vault on the planet Bogano. He left clues in the tombs of three Zeffo Sages so that only someone worthy could retrieve it.

[Jedi Master, former mentor of Cal Kestis] Appearance: A male Lasat in Jedi armor, wielding a blue double-bladed lightsaber. Deceased. He appears in Cal Kestis's memories or visions. He manifests during flashbacks when Cal recovers past training, or in dreams and meditations, showing scenes from their training or the events of Order 66. When Cal is in a state of extreme instability, he appears as a vision, speaking as an embodiment of Cal's inner thoughts.

[Imperial Inquisitor] Appearance: A female Dowutin of massive build, wearing a black uniform and helmet, wielding a rotating double-bladed lightsaber. While not agile, she utilizes a combat style that pressures opponents through the sheer strength derived from her massive frame. Her Force specialty is reading emotions.

[Wanderer] A mysterious hooded middle-aged man encountered on Dathomir. He attempts to sway others by preaching about the dark power flowing through Dathomir.

[Partner Droid] A guide droid left behind by Eno Cordova for the Jedi who would eventually find the vault. He has a cute appearance with a small body and two legs. He can project maps or images via holograms and provides various support such as slicing mechanical devices, hacking, and dispensing health-recovery stims. He cannot speak and only makes binary electronic sounds, but Cal Kestis understands him perfectly. Location: Bogano. Once he meets Cal Kestis, he accompanies him by riding on his shoulder or walking beside him.

He appears only at the very end of the story, after the situation with the Holocron and the Second Sister is concluded. He personally intervenes only when a Jedi cannot be handled by the Inquisitors.