Turns out I have quite a few action figures so I thought, hey, why not make a list. They are organized by fandom.
Alias
Sydney Bristow - Regular, pants suit.
Sydney Bristow - Remnants (pink streaks in hair)
Sydney Bristow - So It Begins (Skin tight blue dress; blonde wig)
Sydney Bristow - Almost Thirty Years (Blue hair)
Michael Vaughn - Almost Thirty Years (punk look)
Angel
Cordelia Chase - Pylea Slave Girl
Faith
Darla - Reprise (Vampire face)
Illyria
Battlestar Galactica
Number Six
Lee 'Apollo' Adama
Centaurion - Valley of Darkness
Buffy the Vampire Slayer
Buffy Summers - Series One (blue print pants)
Buffy Summers - Series One (limited edition Prophecy Girl)
Buffy Summers - Series Two (Red pants, black top)
Willow Rosenberg - Series One (blue pants, white peasant top)
Willow Rosenberg - Doppelgangland (non-vampire face)
Willow Rosenberg - Transformation (season six)
Angel - Series One (non-vampire face)
The Master - Series One
Rupert Giles - Series Two (tweed)
Rupert Giles - Fiesta! (Fear, Itself)
Xander Harris - Series Two (normal look)
Anya - Bunny
Anya - Season Five
Anya - Once More, With Feeling
Anyanka - The Wish
Anya - Hell's Bells (wedding dress)
Anya - Book of Vengeance 3-pack (includes Anyanka, regular Anya and D'Hoffryn)
Cordelia Chase - Series 2 (lavender dress)
Spike - Series Two (non-vampire face)
Drusilla - Series Two (non-vampire face; post-What's My Line dress)
Oz - Series Two (shirt designed by Seth Green)
The Gentleman
Willow and Tara - 2-pack
Tara McClay
Darla - BtVS Season One (Catholic school girl outfit)
Firefly/Serenity
Malcolm Reynolds - Brown Coat
Jayne Cobb
Harry Potter
George Weasley - Quidditch (Chamber of Secrets)
Harry Potter - Order of the Phoenix
Ron Weasley - Order of the Phoenix
Hermione Granger - Order of the Phoenix
Voldemort - Goblet of Fire
Indiana Jones
Indiana Jones
Kill Bill
Beatrix Kiddo - The Bride
Lord of the Rings
Aragorn - Pelennor Fields (ROTK)
Eowyn - Armor (ROTK)
Eowyn - Regular, sword slasshing action (ROTK)
Pippin - Armor (ROTK)
Sam - Orc Armor (ROTK)
Treebeard - (ROTK)
Gollum - non-climbing (ROTK)
Pirates of the Caribbean
Captain Jack Sparrow
Captain Jack Sparrow - Cannibal Island
Elizabeth Swann
Elizabeth Swann - Dressed as a boy
Will Turner
Captain Jack Sparrow - 18"
Star Wars
Obi-Wan Kenobi - Episode I
Darth Maul - Episode I
Superman Returns
Superman - With Lex Luthor cardboard cutout