Megan, being the "step-sister" of former houseguest Regime, was a huge target going into the game. She didn't show up to either session due to commitments in the real world, and was nominated in the second week by mda due to her inactivity. She walked from the game due to her inactivity and went home in 15th place. Megan was ineligible to play in the BattleBack Showdown.
She has been proven to be Dr Peyton's alternate account on many occasions. The most obvious being that "Megan" would not be online when Peyton was offline, similarly Peyton was only online when Megan was. Eventually, Peyton went inactive where Megan soon walked. These events and the fact WhisperingColton was proven to be an alt makes fans question how she was even cast and not expelled. It's speculated bias/rigging was involved.