How Can I Put 2 Items/Players in a Single Variable?

    for i, v in pairs(playersInRoomOne) do
        local theMainText = v.PlayerGui.RoomsGui.RoomOne.mainText.TextLabel
        v.PlayerGui.RoomsGui.RoomOne.mainText.TextLabel.Visible = true

This works, but let's say If I Do

    for i, v in pairs(playersInRoomOne) do
        local theMainText = v.PlayerGui.RoomsGui.RoomOne.mainText.TextLabel
        theMainText.Text = "Game starting in 3...."
	wait(1)
        theMainText.Text = "Game starting in 1...."
	wait(1)
	theMainText.Text = "Game starting in 2...."
	wait(1)
	theMainText.Text = "Game started..."

The Text will go for player one first

Game Starting in 3...

Game Starting in 2...

Game Starting in 1...

Then for Player Two

Game Starting in 3...

Game Starting in 2...

Game Starting in 1...

I tried to put them in a variable

local RoomOnePlayersVar = playersInRoomOne[1] and playersInRoomOne[2]

But it doesn't work, nothing happens when I use the variable, Any Help?

You can achieve this by using a table. This is a datatype that supports multiple Instances and datatypes to be stored into on container by reference of a single name:

local RoomOnePlayersTab = {
	playersInRoomOne[1]; playersInRoomOne[2]
}

Otherwise, you can use single-line declaration—though, this doesn't store both into one:

local PlayerA, PlayerB = playersInRoomOne[1], playersInRoomOne[2]

You can use a for loop to create a countdown shortcut:

for i = 3,1,-1 do
	theMainText.Text = "Game starting in "..i.."...."
	wait(1)
end