Although these were supposedly foes, Rex went on to help Circe while in trouble.   He tend to made an effort to persuade the lady to participate Providence, however, she kept rejecting their render. Rex is actually conscious that Van Kleiss are playing with the woman managed to manipulate your, however, he nonetheless seemed to enjoys thoughts on her behalf. She displayed alot more mercy on the him throughout competition than other Pack professionals.  Even with this lady leased objective, she conveyed shame occasionally, suggesting one to she failed to usually trust playing with Rex.  Circe after stop this new Package, no further with one need for getting part of Van Kleiss’s aggressive agreements. 
Later, whenever Rex went along to the lady during the Hong-kong with his gang, Rex considered that she was at a romance which have Skwydd, and this somewhat troubled him. When he in fact considered recovering from the fact they simply might have been a couple, Circe and you will Skywdd later on mentioned that these people were just “friends”.  Ultimately, Rex and you will Circe mutual their earliest hug due to Circe sacrificing herself so you’re able to Providence to possess him.  Later on, whenever Circe premiered from Providence, Rex and you can Circe accepted each other, pleased are reunited. 
Immediately after becoming discover and you will saved from the him, Half dozen is seen as Rex’s handler. Rex shows a certain amount of passion and annoyance on Broker Six. The guy feedback Half dozen because afrointroductions the a kind of nanny, as it is his job to watch over Rex. Rex is usually annoyed by Six and his awesome tight personality but in reality cares profoundly on what the guy thinks about your and wishes to live doing his criterion, often ultimately causing his vitality to help you fail. 
Immediately following Six had forgotten his memory out-of Caesar’s day/memories server, Rex nonetheless respected him for any reason, even though Half a dozen is actually intentionally browsing kill him. Rex’s have confidence in him is actually just what averted Half a dozen from proceeding which have their measures to begin with. Then conformed whenever he had been appeared up to while the someone who Rex you can expect to believe anywhere near this much he then should try locate a means to be see your face once again. Whenever wanting to fix their memories, Six is nearly slain. Sadly their memory would not be restored, because of Rex delivering quick precautions and you may damaging the machine just before it may create more harm. However, Rex assured which he manage remain next to Six which help him repair their memory. 
Over time, the two have begun development a much deeper father/boy bond. It was also stated because of the Rex he seems to Half a dozen given that a dad shape.  On one point, when Six is put in a good comatose county due to the consequence of an awful battle, the whole date, Rex try distraught, and you can afraid you to definitely Six would in reality pass away. Whenever discovering he had retrieved, Rex is actually happier and you will welcomed him. 
Bobo was Rex’s sidekick and greatest pal. They will have identified both and you can become best friends due to the fact earliest go out it concerned Providence.  Bobo was snarky and you can unreliable; not, he’s going to would his better to protect Rex, unless his compliance is paid for compliment of bribery or dangers.  He will convinces Rex when planning on taking reckless step and you may accompanies your. He’s got publicly acknowledged that he’s a bad effect on Rex.
Rex really preferred flirting which have Dr. Holiday, despite the fact she are much avove the age of him. Despite he fell to possess Circe, he continued to flirt with Dr. Vacation in a partial-teasing method. Towards regarding a recovered Beverly Escape, a fundamentally a more youthful brand of Dr. Holiday, Rex fundamentally had more than his break on her behalf.