Seeing Double

3. David Thompson was a member of this Star Wars family?
5. A sign of accomplishment, which is made of exactly what it sounds like
8. The end of the human body
10. An indicative mathematical function
11. This item can also be used as an adjective to describe itself as a "(blank) of Office Depot"
14. Hakeem Olajuwon owns the most of this kind of group of real estate in NBA history, with 3,830 in his careeer
15. To some, this word brings visions of the afterlife; to others, it brings visions of killing as a game
16. A barber's favorite basketball team
17. A nocturnal warrior
21. This old-timey baseball player sounds like he loved a mid-day rest

1. This football position could display a National Park or notable site in an American state
2. A sharp writing implement
4. This old, baseball-playing pair of brothers killed Socrates?
6. These are the "foundations" of scoring in baseball
7. Germany, in Germany
9. Add an m to this word, and you get the full circle of life
12. A running back's favorite type of car
13. Gamers can't live without this rodent
18. A car company leads the front office of a professional sports team? (abbr.)
19. The color of depression
20. Zeus' favorite Disney movie