This is just my opinion, but I believe Boober is the second or the third oldest because he is responsible, but still is not as calm as Gobo or Mokey. Gobo I think is the second oldest probably or third. Gobo and Boober are both pretty responsible but Boober acts a little more childish despite his many responsibilities. Mokey is the oldest, Wembly the youngest. Red I would think would be younger than Boober or Gobo because she acts carefree, but older than Wembly because she is more independant. I hope this is helpful even though most things have already been said!