'''Sam:''' Wait a second. I remember, Bobby told me when you needed strength to retrieve us from the past, you used him to power up. You touched his soul, right?
:''Castiel used Bobby's soul as power to retrieve Sam and Dean from 1861 in [[http://www.supernaturalwiki.com/index.php?title=6.18_Frontierland]].''
}}
* [http://www.accesshollywood.com/articles/supernaturals-misha-collins-playing-lustiel-giving-back/ Interview with Misha about playing Lucifer] and the You Are Not Alone Campaign by AccessHollywood
* [http://www.ew.com/article/2016/02/17/supernatural-misha-collins-lucifer?xid=entertainment-weekly_socialflow_twitter Interview with Misha about playing Lucifer] by EW
* [https://storify.com/superwiki/livetweets-from-the-vessel Livetweets from the cast and crwe during the broadcast]