Tarot Cafe Vol.2 (Werewolf Transformation)

The manwha (Korean manga) Tarot Cafe features a werewolf character in its second volume. We first see him going from werewolf to human here, followed much later by a one panel TF. If this character appears in later volumes please let me know.

There's also a female TF for those who like that sort of thing...

Wizards of Waverly Place (Werewolf Transformation)

This is not the first werewolf to appear in this Disney show--in an earlier episode the brother of the main wizardess was transformed into one, but alas, there was no onscreen TF (damn it!). That oversight is made up for here, since the cute boyfriend character goes through a two-part transformation. The computer morphing isn't bad, but one regrets the lack of muscle growth or clothes-ripping.

Eerie Cuties (Werewolf Transformation)

The webcomic Eerie Cuties features a werewolf as one of its main cast members, as you can see here. He undergoes a reversion later on, followed by lengthier transformation and a short one.

Chocolate Milkmaid (Demon Transformation)

Another NSFW webcomic from the WLP stable. A young man and his girlfriend drink an experimental formula, and tentacle p0rn ensues. Start reading here.

The Magnificent Milkmaid (Demon Transformation)

Here's a NSFW webcomic wherein a young man gets turned into a very well-hung fertility God. Start reading here. The pages are somewhat scrambled, so click here for the reverse TF.

Cry Havoc (Werewolf Transformation)

This military-themed webcomic stars several lycanthropes. The TF scene is here.

Ben10 (Demon Transformation)

Sorry for the extended hiatus folks, but rest assured I'm back and will be busier than ever.

Here's a couple of brief demonic TFs from the Ben10 episode "Be Afraid of the Dark," which you can watch here. TFs are at the 14:25 mark and there's a reverse TF at the 18:48 mark.