Misc Trivia: What is the only continent to incorporate the letters A E I O U?

Questions

On three's company,what was Chrissy's father's ocupation??

What current cast member of ER was on an 80's show of the same name??

Who was the bully who terrorized Arnold on Different Strokes??

What was Roscoe's dogs name on the Dukes of Hazzard??

What was the name of the school mistress in The facts of Life??