Is it possible to turn an objectvalue into a string?

I know this is not a request site but I have a script that takes an object value and uses it for a location (at the bottom). I was wondering if it is physically possible to turn that value of the objectvalue into a string value. My issue is the objectvalue holds a player name but the player name is an objectvalue so I can't use it for finding a location (if this is too confusing just ask for me to explain and I will).

Well here is the code, it is pretty much pointless, you don't even need to look at it:

rewardmessage = game.Lighting.KillerReward

script.Parent.Zombie.Died:connect(function()
	if script.Parent.Zombie.Health == 0 then
		local killer = script.Parent.Zombie.creator
		print(killer.Value)
		local killervalue = Instance.new("BoolValue", script.Parent)
		killervalue.Value = killer.Value
		local rewardclone = rewardmessage:clone()
		rewardclone.Parent = game.Players[killer.Value].PlayerGui.MainScreen
		if game.Players[killer.Value].PlayerGui.MainScreen.PlayerValues.HasCoinBooster.Value == true then
			rewardclone.CoinReward.Text = "+2 coins"
			if game.Players[killer.Value].PlayerGui.MainScreen.PlayerValues.HasXPBooster.Value == true then
				rewardclone.XPReward.Text = "+10 XP"
			else rewardclone.XPReward.Text = "+5 XP"
			end
		else
			rewardclone.CoinReward.Text = "+1 coin"
			if game.Players[killer.Value].PlayerGui.MainScreen.PlayerValues.HasXPBooster.Value == true then
				rewardclone.XPReward.Text = "+10 XP"
			else 
				rewardclone.XPReward.Text = "+5 XP"
			end
		end
	end
end)