Supernatural (2005–2020)
8 user 2 critic

On the Head of a Pin 

Castiel and Uriel ask Dean to torture Alastair for information. But when Alastair breaks free, Castiel starts to believe that there is a traitor among the angels.


Mike Rohl


Eric Kripke (created by), Ben Edlund




Episode cast overview:
Jared Padalecki ... Sam Winchester
Jensen Ackles ... Dean Winchester
Robert Wisdom ... Uriel
Misha Collins ... Castiel
Genevieve Padalecki ... Ruby (as Genevieve Cortese)
Julie McNiven ... Anna Milton
Christopher Heyerdahl ... Alastair
Brent Woolsey Brent Woolsey ... Cop
Crystell Hendricks Crystell Hendricks ... Angel


Uriel and Castiel forcibly recruit Dean to torture the captive Alastair. They need to find how, who or what is killing angels as one of another 66 Seals in which both Dean and his former captor play mind games against each other to break one another down. Sam is forced to call upon Ruby to help him find Dean before he emotionally cracks, while the rouge angel, Anna Milton, also returns to ask Castiel where he stands on his position as an angel of the Lord - does he obey all heavenly rules without question? Written by matt-282

Plot Summary | Plot Synopsis


TV-14 | See all certifications »

Did You Know?


At the L.A. Supernatural Convention in 2011, Jensen Ackles praised the performance of Christopher Heyerdahl (Alistair) in this episode, saying that during the torture scene Ackles was thinking "'Wow, I'm being totally out-acted here!' I mean, wasn't he good?" The audience replied with massive applause. See more »


Alastair: And it is written that the first seal shall be broken when a righteous man sheds blood in hell. As he breaks, so shall it break.
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References Little Shop of Horrors (1986) See more »


Cheek to Cheek
Written by Irving Berlin
Performed by Christopher Heyerdahl
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User Reviews

Best. Episode. EVAH.
29 March 2009 | by claire-m-kellySee all my reviews

I had to do a little dance when it was over, I was so excited. This show has really come into it's own - season 1 was very "monster of the week", but since then, the backplots have been getting better and better. This episode significantly advances the angels' storyline, answering some maddening questions I've had this year. Astute (and obsessed!) fans will note that it answers some older questions as well. We see a side of Dean which many would prefer not to speculate about. The cinematography this season has been amazing, particularly when the angels are around. Some great examples of that this episode. The beautiful and talented Julie McNiven was back this week, kindling hopes that she will be around in the long run - hooray!

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Release Date:

19 March 2009 (USA) See more »

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Sound Mix:




Aspect Ratio:

1.78 : 1
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