Season Four:
"Spin the Bottle"
"Rain of Fire"
"Habeas Corpses"
"Long Day's Journey"
"Awakening"
"Soulless"
"Calvary"
"Salvage" (Killed by Angelus)
The Beast Quotes:
Beast: This is all you are? I had heard the slayer possessed great strength, but there's no real power here. My master's power is beyond all limits, beyond your petty imagining. You are weak. You're nothing. You could not even defeat me.
  ~From "Salvage"
The Beast: I am honored you've come. Fire, death, and darkness have I bestowed in your name. Now, this humble token I offer, forged of my unworthy bones -- a tribute to your power.
  ~From "Calvary"
The Beast: You need not be my enemy. Join with me, Angelus.
  ~From "Soulless"
The Beast: I grow weary of your cowardice, Angelus. If you will not stand with me, then suffer the agony of my wrath.
  ~From "Awakening"
The Beast: I told you once…you need not be my enemy. Join with me…Angelus.
  ~From "Long Day's Journey"
The Beast: Do you really think she's safe with him?
  ~From "Rain of Fire"