UnScramble this Word: i l i t s e s l?

Questions

What was the famous line uttered by an old woman in Wendy's ads??

What were the names of the Saturday morning cartoon critters who lived in air-vents and befriended a boy who kept their secret hidden??

What actor mouthed the line "Whatch you talkin' 'bout Willis?"?

Who played Axel Foley's best friend in Detroit??

What was the name of the funky van Scooby Doo and friends rode in??