It's official! We have a cast for Teen Mom 3! It consists of Mackenzie Douthit, Katie Yeager, Alexandria Sekella and Briana Dejesus, who all starred in their own episode of 16 & Pregnant. There is no word yet on the official air date, but In Touch confirmed who the cast was along with other various websites. The girls have also been throwing out hints on Twitter that make it pretty obvious they are the future cast. I know how hard it is to remember all these chicks so if you want to see a pic of the new girls and a brief summary of their episode, click here!