How can I get the closest character to the player?

I've been messing around with this script for a bit, until I finally realized I can't use table.sort() on a table of objects (the characters). So after that revelation, I realized I needed a way to return the character and also sort a table to get the smallest distance with the first index.

Any ideas? I'm stumped.

local function GetClosestCharacter()
	local distTable = {}
	for i, plr in pairs (Players:GetPlayers()) do
		if plr ~= Player then
			if Functions.IsTeamMate(plr, Player) then 
				if plr.Character and Character then 
					local distance = (plr.Character.HumanoidRootPart.Position - Character.HumanoidRootPart.Position).Magnitude
					if distance <= Configuration.HealMaxDistance.Value then  
						table.insert(distTable, i, plr.Character) 
					end
				end
			end
		end
	end
	table.sort(distTable)
	return distTable[1]
end

Heres what I had so far, which obviously trying to compare objects is syntactically incorrect, I just cant think of a way to return the character with the shortest distance to the player.