Now trying to imagine the casts of The Murderbot Diaries and The Bartimaeus Sequence transplanted into each other's worlds. Despite the similar vibes and main characters, I don't think it really works very well because so many of the character dynamics in either series just don't work in each other's settings. E.g. while Bartimaeus absolutely has the equivalent of a functioning governor module most of the time, his relationship with his summoners is openly adversarial in a way that a corporate-owned secunit cannot get away with doing with its clients.
But, just for the hell of it:
Bartimaeus, in Murderbot's setting, is... I guess a secunit? A really old unkillable cockroach secunit his owners can't get rid of, like Murderbot. However, it's very significant to Bartimaeus's character that he's so old he has seen several civilizations rise and fall, and I think the only thing that could replicate that is if he's a pre-Corporate-Rim proto-secunit that's been upgraded and rebuilt so many times he basically passes for one. I think Bart is also, if not outright a combat secunit then at least a machine intelligence that can hack and do espionage.
He is also way, way more murderous than Murderbot is. Bartimaeus hates his job (according to him. Strangely seems to enjoy the challenge more than he's willing to admit and will brag about his record to anyone willing to listen), hates 99% of his clients and will happily kill the corporate douchebags who usually rent him out if he can get away with it. Which I guess here would mean figuring out the authorization codes to temporarily disable his governor module. One of the reasons this crossover doesn't really work is because Bartimaeus is canonically very good at killing his summoners, and a secunit is going to get memory wiped or fully destroyed for doing that. And now that I'm thinking about it, the two characters kind of have opposite relationships with their humans: Bartimaeus is usually trying to convince his humans that he's a person, whereas Murderbot's humans are usually trying to convince Murderbot that it's a person.
Kitty Jones fits into Murderbot!verse the best, TBH, because she's just kind of living a cyberpunk plot. The Resistance are I guess a group of humans who've gotten special very illegal-on-the-corporate-rim augments (secretly bankrolled by corporate exec Makepeace) and use them to sabotage corporations.
Nathaniel is... Bartimaeus's dumbass client who's trying to use him to do corporate espionage. Repeatedly. While Bartimaeus is contractually obligated to not let him get killed, and Nat finds a way to blackmail him even though Bartimaeus finds all the passcodes to lock Nathaniel out of controlling his governor module.
Ptolemy was I guess a brilliant researcher who was trying to truly understand machine consciousness and writing papers trying to convince the world that bots and constructs are truly sentient while the corporations tried to suppress it. Invented a piece of software that can use a normal feed interface augment to "Full Dive" upload your mind into The Feed, but caused serious damage to his own brain wiring while testing it.
As for other spirits... uhh, Faquarl is also pre-CR, and if Bartimaeus isn't a combat secunit than Faquarl definitely is. Jabor is an actual goddamn combat bot, and the various Afrits in the series would also probably be either combat bots or bot-pilots of serious military ships. Foliots and imps are the equivalent of normal lower-level bots, with some imps just being bot-piloted drones. Special shoutout to Simpkin probably being a similar model of bot-form human to Miki. And I guess in this AU, Queezle is a relatively new secunit who got a couple long-duration contracts with research teams on the level of PresAux or Art's crew, then got thrown into a pitched intercorporate war / hostile takeover. Also featuring: The Golem as an armored killdozer which runs entirely on extremely simple analog tech that makes it basically unjammable and is itself an immensely powerful jammer / radiation hazard that can fry the processors of drones or bots that get near it. And Uraziel as an alien remnant MI? And Ammet, given his preferred form being a shadow, I think could be an extremely powerful disembodied MI that travels through the feed and takes over systems at will.
The reverse of this, Murderbot's cast in Bartseq universe, is kind of hilarious. Murderbot is a mid-level djinni that managed to find a way to reliably break all binding power that magicians have over it, but it uses this power to sneak off and watch mediocre plays while it's supposed to be working instead of killing its masters. Has watched Swans Of Araby numerous times. And then it becomes besties with a goddamn Marid (Perihelion) and bond over their love of trashy novels.