Successfully complete the indicated task to unlock a Edgar:

Once Upon A Time

Find 125 collectables.
Find all 300 collectables.
Successfully complete Bo Peep's Close Shave.
Successfully complete The Wood, the Witch and the Turtle.
Successfully complete Little Miss-placed Muffet.
Successfully complete Billy Goat Bridge Bash.
Successfully complete Enter the Dragon.
Locate Chicken Boo.

Spooky Movie

Find 125 collectables.
Find all 300 collectables.
Successfully complete Exorcise in the Front Garden.
Successfully complete Puzzle Cube Conundrum.
Successfully complete Ghoulish Fountain Frolics.
Successfully complete Here comes the Bride... She's Alive.
Successfully complete Crypt-ic Bone Search.
Locate Chicken Boo.

Warner Film Lot

Find 125 collectables.
Find all 300 collectables.
Collect all 6 script pages.
Locate Chicken Boo.
Defeat C. C. Deville.

Ye Old West

Find 125 collectables.
Find all 300 collectables.
Successfully complete Moody Clan Round Up.
Successfully complete Down the Tracks.
Successfully complete Reservation Rain Dance.
Successfully complete Horse Shoe Shenanigans.
Successfully complete Bucking Champion.
Locate Chicken Boo.