For someone whose job is to be in this kind of shape and has access to all of the resources that Kumail mentioned in his post, this is totally doable without steroids. He's just lean and probably put on a few pounds of muscle over the course of a year. With the same trainer, chef, time, and financial incentive there are plenty of people in this forum that could get similar results.
Basically he most likely didn't take steroids.
Dude it being their job to get into that kind of the shape in a short amount of time with millions of dollar riding on it is what almost guarantees the use of PEDs. Why in the world would you not use them with all the massive benefits they provide and with how safe they are to use with access to Hollywood resources?
Now yes, his physique is absolutely achievable naturally, besides the vascularity which is genetics, dehydration, and/or a sign of PEDs. Many people have this misconception that roids automatically turn you into some mass monster and no, you still have to train in a specific way and eat enough to get mass monster results which is not the goal of everyone who takes drugs, some just use it for the recovery and want to stay lean. And many people who take steroids still don't look impressive, full blown DYEL cause they don't train hard enough.
Now, all that said, is this possible inside of a year naturally if you do everything perfectly like he was when you have the time, money, and Hollywood trainer resources? That depends on where you started from, so technically yes. You have to add in that this particular picture is after a pump, has perfect lighting, angles, and he's probably dehydrated.
I don't know where he started from, it's very possible its natural just unlikely when there's so many incentives to use drugs to better ensure you can achieve the results you want and how common it is in Hollywood. Lastly gotta reiterate that using drugs absolutely does not discount all the hard work and dedication you still have to put in.
