The Hollywood actor's character is infected with an alien entity in the Spider-Man spin-off and begins to hear voices in his head while fighting the urge to eat people.
Tom, 41, was interviewed with co-star Riz Ahmed, and told Good Morning Britain's Richard Arnold: "For me obviously I am a bog standard alcoholic, for my whole life, in recovery as it were.
"There are elements of that which I go, 'OK, that's my inside voice.' Normally I would act out on that, but that's not good for me as a human being.
"But this isn't me, this is a superhero entity thing. I can see the symbolism there."
Tom has previously said of his teens: “I was an obnoxious, trouble-making lunatic.”
The star was later spotted at drama school and signed up for Steven Spielberg’s TV series Band Of Brothers.
It was his big break, but Tom was still in the throes of a chronic drug and alcohol addiction.
He said: “I would have sold my mother for a rock of crack . . . The police would come, people would beat me up, but it never killed me so I was like, ‘All right, what else you got?’”
Yet Tom turned his life around. He went into rehab in 2003 and has been clean and sober ever since.
The star recently said he also took the inspiration for his latest role from UFC fighter Conor McGregor.
Tom admitted he used the inspiration because McGregor "wants to have a scrap with everybody".
He said: "There was an aspect the studio wanted somebody who could fight, which they always do in these sort of hero movies. They want somebody who can have a scrap. Conor obviously wants to have a scrap with everybody, so that's useful."
Following his interview, Good Morning Britain got in the superhero spirit and flashed images of Susanna Reid, Ben Shephard and Richard as comic book heroes on screen.
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