The season featured the significant return of Lucifer (initially portrayed by Mark Pellegrino in the cage) and ultimately revealed Chuck as God.
The season centered on The Darkness (Amara), an all-powerful entity predating creation that was unleashed after the Mark of Cain was removed. Key Highlights: Season 112015
The 2015 television landscape featured several major long-running series hitting their landmark . While many shows reached this milestone during the 2015 calendar year, they often fell into different halves of their respective broadcast cycles. The Year of the Darkness: Supernatural The season featured the significant return of Lucifer
Grey's Anatomy began the second half of Season 11 in January 2015 and concluded it in May. While many shows reached this milestone during the
A fan-favorite episode filmed entirely from the perspective of the Winchesters' 1967 Chevrolet Impala.
The finale saw an unprecedented alliance between the Winchesters, Castiel (possessed by Lucifer), Crowley, Rowena, and God to stop the Darkness. The Meredith-Centric Era: Grey's Anatomy
Supernatural premiered its 11th season on The CW on October 7, 2015.