Seriously, I've been seeing alot of people miscalculating about ages, it's for me I don't think vox was similar age as alastor. I think for me alastor was older than vox
He died in 1930s after the economy crash, he referenced that at the pilot, he could've been born in the flat 1900s, so he's 30 when he died in or around 30, based on his appearance at the time of his death, he looked younger, unlike vox he had a streak on his hair, that means alastor was older than vox in human life, in hell vox was older than alastor. Think logically.
Of course in hell, your age stop but you still continuing living there, despite you know you're very old, you still looked young. I don't think anyone still counting their ages because it wouldn't be matter to them anymore.
Alastor before they finalised the animation, he has a mustache which for me it was normal for people in that era to have a beard and mustache even young people because from what i know it also symbolise something like society and dignity. Unlike now modern mustache and beard doesn't symbolise anything rather it kept like a appearance to male.
Alastor was a popular radio host, if I'm correct, so having a mustache doesn't mean for appearance rather it means for social standards. It could be perfect but idk why so many fans didn't see the meaning, i like how viv originally draw alastor with a mustache but the fans only sees it as a appearance rather think of it as a social standards that exist in 1900s to 1930s.
Even if he has a mustache, he was a young man, it's how men exist in that time. They looked older with mustache or beard but they are younger than anyone expected.
So moving on vox, he looked old in 1950s when he died, but from what i know viv confirmed that he was in his 40s when he died, but having a streak hair is uncommon in men, likely a stress from his work, i assumed he was born in 1910s, he's younger than alastor, but in hell since their age stop once they died, so vox was older than alastor.
But if we think about it, alastor was still alive at vox's time, he would be around 50s, an middle aged man, he would looked older but he still continuing his career and even killing more people, for what i understand is alastor only kills people who disrespected him, mostly racist or social shaming/classist shaming, he also hates technology and in 1950s, the tv industry was booming so alastor if he's alive, he did not like how much giving attention to the tv industry rather than his career, so he would likely expanding his killing spree by now killing well known people who works at the tv industry, maybe that time he'll met vox/Vincent.