Bernie Kosar/Hadley

Bernie Kosar, also known as Hadley, is a Chimæra from Lorien.

Chimæras have the power to morph into other animals or beasts. He has been following and protecting John and Henri ever since they came to Earth. John remembers that in Florida, there was always a gecko staring at him while he ate breakfast.

While they are in Paradise, Bernie takes the form of a beagle.

His name on Lorien was Hadley.

John has a few visions of him back when they were on Lorien.

In the second book, John realizes that Bernie Kosar is Hadley. Bernie helps John, Sam, and Six whenever they are in trouble with the police or Mogadorians.

In The Rise of Nine, Bernie continues to help John, along with the newly found Number Nine and is shown to be fighting alongside the entire Garde, with the exception of Five, against Setrákus Ra at the secret government base in New Mexico. At the end of the book, Bernie and the others survive Setrákus and are trying to find a way out, while at the same time looking for Sam, who has been captured by the Mogadorians at the end of the second book.

In the Fall of Five, BK helps fend off the rest of the Mogadorians at the end of the book and is unknown as to whether he survives or not.