Dr. A (Do-gooder)
Mr. E (Evil schemer)
Horatio (Evil schemer)
My intention was to let the personality of each character come through:
Mitch is upbeat and eager to take on new challenges
Otis is a big goofball
Dr. A is old and kind of beat up from a long life of adventurin' and crime fightin'
Mr. E is a very old creeper
and Horatio clearly thinks very highly of himself!
The resolution for these files is huge, so if you can scale them down to the right size, good. If not, you should be able to 'fit' the wallpapers on any 4:3 ratio monitor (I think). If you have a widescreen monitor, just set the background color to black beforehand, and you should be good to go!