The amount of misinformation that gets thrown around on this forum about working out/physique is amazingly stupid at times.
Yes - Rock is on roids and possibly HGH along with it. He had to have surgery on his gyno years ago for poor cycling of roids..and now hes bigger lol so yeah..obv. He was like 270 at Wrestlemania and about 300 now.
Maybe - You could look like Mark without roids, as hes a short man and its far easier to pack a smaller frame. Hes always been in good shape too so with his awesome home gym, all the supplements he can affort..loads..no problem.
Tom - maybe for Warrior, maybe or maybe not here. Thats what I was saying about Mark..MANY guys in gyms take alot of gear but they look semi-normal and some take none and look huge. Never can tell. Some use for speedier results, some to move past the natural barrier. Lots take them and look skinny as hell and just use it as a recovery agent.
Im a personal trainer and in training for natural (drugfree) strongman and being 6ft4 an 260ish I get weird looks if I say im natural in a gym..people dont want to believe others get somewhere without drugs.
Taking into account Tom and he overcoming drug addiction in the past..I tend to think he isnt on anything.
Ps. its harder to gain as you get older generally, not easier. And in that pic of Rock he IS shrugging up so he does look alot bigger - there are pics of him about two seconds earlier and later where his un-shrugs and looks like he did in the other pics posted. Although he did pack it on after Mania..dropping all dat der cardio.