How do I get the player from the player character?

I know how to get the character form the player but how do I get the player?

player = script.Parent.Parent
player.Character.Torso

but how would i get from the players character to the one in Players?

I know you already found a solution, but just in case anyone else wanted to know, the Players service has a method called GetPlayerFromCharacter.

local character = game.Workspace.Player
local player = game.Players:GetPlayerFromCharacter(character)