The famous "Wilhelm scream" makes an appearance - the first demon Lindsey cuts up cries it out. Submitted by Jon Sandys

When the gang are in Spike's apartment where Angel is assigning them to go after members of the Circle of the Black Thorn, Spike says "First off, I'm not wearing any amulets. No bracelets, broaches, beads, pendants, pins, or rings. " This is a reference to how Spike dies in the series finale of Buffy by wearing an amulet to destroy the Hellmouth. Submitted by Maria Santos

Angel's plan to kill the ranking members of the Circle of the Black Thorn bears a striking similarity to the mass murders ordered by Michael Corleone in the climax of The Godfather and its sequels. Submitted by Cubs Fan

In episode 18 of season 5 after Connor kills the demon he tells Angel that he doesn't like people touching his neck. This is a reference to getting his throat cut by Angel in episode 22 of season 4. No one knows that Connor just got his memories back. Submitted by Maria Santos

In the episode "Underneath", Illyria is talking about different dimensions she has visited and she says "And one world with nothing but shrimp...I tired of that one quickly." This is a reference to Buffy episode "Superstar": when Anya is explaining that there are many types of alternate realities, she says, "And there could even be a world with nothing but shrimp."

Concerning Fred's line "Handsome man saves me from the monsters" She said this as well in Pylea. Those are the first and last words she ever says to Angel. Submitted by Maria Santos

Gregor Framkin, the creator of the "Smile Time" show-within-a-show, is played by executive producer David Fury. Submitted by Cubs Fan

In one scene, Wesley's father mentions the destruction of the Watcher's Council building, which happened in the Buffy episode "Never Leave Me." Submitted by Cubs Fan

Angel leaves the Reaper locked in a metal cage as the camera pans slowly back so we can only see his eyes - almost exactly the same shot as when Connor left Angel trapped in the metal coffin at the end of "Tomorrow". They even say the same thing - "You get to live. Forever". Like father, like son.