Axel is an aggressive android and the de facto leader of B.A.D. He is assertive and formal with a relatively deep voice, likely the deepest of the trio. It's rare that his tone doesn't hold some sort of tension and more so than any of the characters does he raise his voice. He's not afraid to yell at people, which is why being able to properly shout is a major requirement for him. Even though he's a robot, his voice still sound natural. It's not overly stilted or processed and probably won't have any sort of filter over it. The closest comparison I've found in terms of delivery would be Bakugou, if I'm going to be honest.

For extra context, Axel was essentially built to be a leader. He's been doing this for years and has recently been knocked down a peg. He's currently trying to find a balance between treating the other two as friends and subordinates. This can lead to him coming off as aggressively motivational, especially towards the beginning.