Misc: Which is found in an ocean the North Pole or the South Pole?

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??