Supernatural (2005– )
8 user 2 critic

I Know What You Did Last Summer 

Sam, Dean, and Ruby discover the existence of a female prophet named Anna Milton, who can hear the voices of angels and thus figures into the plans of a demon named Alastair who wants to use her as a tool against the angels.


Charles Beeson


Eric Kripke (created by), Sera Gamble




Episode cast overview, first billed only:
Jared Padalecki ... Sam Winchester
Jensen Ackles ... Dean Winchester
Robert Wisdom ... Uriel
Genevieve Padalecki ... Ruby (as Genevieve Cortese)
Misha Collins ... Castiel
Julie McNiven ... Anna Milton
Mark Rolston ... Alastair
Gwynyth Walsh ... Psychologist
Anna Williams Anna Williams ... Blonde Ruby
Drew Nelson ... Crossroads Demon
Dave Collette ... Orderly Demon
Shawn Hall Shawn Hall ... Pool Player
Samantha Page ... Little Girl
Michelle Hewitt-Williams Michelle Hewitt-Williams ... Maid Ruby (as Michelle Hewitt Williams)
Anthony Harrison ... Doctor


Ruby meets Sam and Dean in a bar to tell that the intern Anna Milton has just escaped from a mental institution and is chased by the demons. The Winchester brothers head to the asylum and they discover the hideout of Anna in a church; the young woman discloses that she can overhear angels since September, 18th, i.e., the day Dean left hell. The powerful demon Alastair attacks Sam and Dean to capture Anna, but Ruby rescues Anna Milton and hides her. Meanwhile Sam discloses his relationship with Ruby to Dean and why he trusts her. Out of the blue, Castiel and Uriel arrive in the hideout of Anna Milton and tell Sam, Dean and Ruby that they want to kill Anna. Written by Claudio Carvalho, Rio de Janeiro, Brazil

Plot Summary | Plot Synopsis


TV-14 | See all certifications »

Parents Guide:

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Release Date:

13 November 2008 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:

Dolby Digital



Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


When talking about finding Anna, Dean says "So I'm girl interrupted..." to Sam. Misha Collins is in the 1999 movie Girl Interrupted. See more »


When Sam and Dean are talking to the nurse at the hospital, they discuss the Apocalypse. They name the book of the Bible, "Revelations", it's actually "Revelation". See more »


Alastair: [after Sam tries to exorcise him] That tickles.
See more »


References Girl, Interrupted (1999) See more »


The Blues Won't Let Me Be
Lyrics by "Left Hand Frank" Craig
Composed by "Left Hand Frank" Craig, Willie Cobb, James Scott, Jimmy Dawkins, Junior Wells, Good Rockin' Charles, Jimmy Rogers, and Theodore Roosevelt Taylor (aka Hound Dog Taylor)
Performed by Left Hand Frank and His Blues Band
See more »

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User Reviews

A Hand of Awful Rewards
7 June 2011 | by ttapolaSee all my reviews

From the "Then" recap the viewers are immediately informed that this episode will mark the return of the Mytharc, big time. The opening sequence brings in Julie McNiven, whose only real significant role by this time was a supporting character in season 1 (2007) of the rather boring Mad Men. This is worth mentioning because though I've watched season 1 (and 2) of Mad Men, I cannot for the death of me remember her character in that series. Here, in her first scene, she gives such a tremendous performance that rare must be the viewer who will not take note of her. And that is just *a couple* of scenes.

When it comes to acting, this episode is a huge treat. Misha Collins returns, delivering yet another great performance - by now it is impossible to think someone else as Castiel. With him, comes Robert Wisdom's Uriel, again putting the fear of God into other characters (and possibly the viewers as well). As if this were not enough, they also drop in Mark motherfrakkin' Rolston, Drake himself from Aliens! His performance here is simply frightening - oozing evil, and not in the caricatured, clichéd way evil is too often depicted on TV and movies. No, a truly great evil character is one who can justify his actions by logic - instead of the evil-just-because-they-are-evil characters. Rolston here can be compared to Hugo Weaving in The Matrix, that's how good he is. Yet, the star of this episode is Jared Padalecki, who finally gets some great material to work on and proves that he's just as good, if not better than Jensen Ackles. As for Genevieve Cortese, after this episode you may see her in a whole new light, in more senses than one...

The plot is not only magnificently imaginative and twisty but also non-linear, a feat that is harder to accomplish than most writers think. This is dense yet exciting TV, never losing momentum because of character moments. *That* is impressive. This really is one of those rarest of beasts - it has everything: drama, suspense, shocks, surprises, humor and action. Also, the intensity keeps increasing and increasing constantly throughout the episode, right to the very final scene. It is not 100% perfect, but a 95% perfect rounds up to a 10/10. Not to be missed.

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