Since the answers are both in, I can say what I think they are... Right?
Group 1
1. Kim Possible.
2. The jumping fountains, or that backwards waterfall thing by the Imagination pavillion.
3. Tony's restaurant in Magic Kingdom.
Group 2
1. Thurl Ravenscroft. Lead singer in Grim Grinning Ghosts. Voices several pirates in Pirates of the Caribbean. Voices plenty of other characters around the parts, from Country Bear Jamboree to Splash Mountain. Often mistaken to be the ghost host's voice in Haunted Mansion. This was who I first thought, but Paul Frees sounds more correct.
2. I first thought Simba, but I misread a line. Now I think it's Timon.
3. Kida from Atlanits: The Lost Empire.