What zodiac signs would the characters from Scooby Doo be?

I know it’s kind of a weird question but here goes:

What zodiac signs would the characters from Scooby Doo be?

1. What zodiac sign would Scooby Doo’s be?
2. What zodiac sign would Fred be?
3. What zodiac sign would Daphne be?
4. What zodiac sign would Shaggy be?
5. What zodiac sign would Velma be?