Ben Tennyson (Classic)/Allies

===Kevin Levin===
See Article: Relationship with Kevin Levin
===Azmuth===
Ben's initial thoughts of Azmuth before meeting him were never stated, but he did find it to be somewhat surprising that he was a Galvan. After meeting him, he thought of him as a jerk who cared about no one but himself. However, his perception of him changed when Azmuth fixed the Omnitrix.Ben 10: Secret of the Omnitrix
Five years prior to Omniverse, Ben and Azmuth interacted more frequently after the latter's reintegration into Galvan society. Ben was disgusted towards Azmuth's refusal to correct Malware, but they still respected and assisted each other. In a flashback in Showdown: Part 1, Azmuth warned Ben to not overuse Feedback, but Ben did not heed his warning and Feedback was lost from the Omnitrix after a fight with Malware. and during a flashback in Showdown: Part 2, Azmuth offered Ben advice and comfort after he lost Feedback.
In Alien Force, Ben respected Azmuth as the creator of the Omnitrix, though he was willing to go against his orders when he deemed it necessary, such as when he refused to stay out of the final battle against the Highbreed. In Vengeance of Vilgax: Part 2, Ben lost Azmuth's trust after hacking the Omnitrix.
===Professor Paradox===
Ben first met Professor Paradox in Paradox to stop a Trans-Dimensional Creature. Professor Paradox claimed he would help Ben save the "whole entire universe". 
Paradox puts great faith in Ben, even stating to Azmuth that he was destined for greatness.
===Jimmy Jones===
Jimmy revealed Ben's identity to the public on Earth by linking alien sightings along with the intergalactic peace symbol all on their chests matching that of a picture of Ben ready to activate the Omnitrix and leaking it to his own personal website. 
In Ultimate Alien, Ben considered him a reliable source of information. However, in Omniverse, Ben is shown to be very skeptical and dismissive of Jimmy's claims and theories.
===Rook Blonko===
See Article: Relationship with Rook Blonko
===Skurd===
Initially, Ben and Skurd had a strenuous relationship, with Ben finding Skurd's snark to be annoying and Skurd finding Ben to be nothing more than a "free lunch". During their tenure together, they would frequently bicker. However, over time, the two grew closer, with both saying they owed the other their life. Ben 10,000, upon seeing Skurd for the first time in years, recalled fond memories.Let's Do the Time War Again