| There is certainly a place for a dread necromancer, although one such as you describe, Bohemian Ear-Spork, would undoubtedly be misunderstood by the populace at large. The class is a bit nefarious by its very nature considering it mirrors the powers of a lich with the end result of actually becoming a lich at 20th level. Such powers will undoubtedly come to taint your character's seeming mirth and goodwill as you describe it. Another angle comes to mind however; that your character is cursed somehow with these powers and fights a constant inner struggle.
If you are considering a cleric, there are only four established temples in Cauldron; temples to St. Cuthbert, Pelor, Kord, and Wee Jas. A local thieves' guild has a shrine to Olidammara. There is also a shrine to Fharlanghn at the Lucky Monkey, as well as a loosely organized group of his faithful spread throughout the region. Additional shrines to Pelor, Wee Jas, Moradin, Yondalla, and Garl Glittergold can be found in the outlying towns and villages in the area. If you worship one of these religions, you will have an advantage of a support structure to rely on.
A Note on Undead: While undead can be found in this campaign, they are not the focus of it, so it might be a good idea to focus on feats that allow you to use your divine energy for other uses.
If you are considering a druid, bear in mind much of the campaign takes place in a dungeon or urban environment, hence a druid focusing on wilderness skills won't have as much to do as one who focuses on other skills. Still, there are a number of things for druids to do in this campaign and plenty of places for a druid's specialized skills to shine. | 
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