|Episode(s)||7.22 There Will Be Blood|
Allan is one of two known children who were abducted by the Alpha Vampire.
While the Alpha Vampire is talking with Sam and Dean, Allan comes into the room to warn him that Edgar has arrived.
After dispatching Edgar, Sam and Dean make the Alpha Vampire relinquish Allan. Sam and Dean take Allan to the police station, but the cops believed that Sam and Dean took him, so they jumped out the window to escape police custody. Later, Sam says that as long as he gets back to his family, he doesn't care what the police think.