Johnny Wander/YMMV

From the main comic:

 * Nightmare Fuel: Strip 59. Not something you'd want to experience yourself.
 * Also: The squirrel colony.
 * Ensemble Darkhorse: John, whose deadpan seriousness in weird sayings is even tagged in the comics as "Johnisms". He also has his own popular "advice" column.
 * Squick: The potato

From the short stories:

 * Angst? What Angst?: Cecilia is at most a bit surprised when gives her a skeleton-hand. She says it's quite a conversation piece. Her reaction is similar to the events of the ghost mice story.