What do these people have in common?

Question

http://www.stlradio.com/pix/photo-dannydark2.jpg

http://weblogs.newsday.com/sports/watchdog/blog/Ted_Knight.jpg

http://user.pa.net/~ejjeff/KBO%20CaseyKasem1975.jpg

http://upload.wikimedia.org/wikipedia/en/1/19/Olansoule.jpg

http://ia.media-imdb.com/images/M/MV5BMTU0OTgyNTUyMl5BMl5BanBnXkFyZXN1bWU@._V1._CR0,0,1229,1229_SS90_.jpg

http://images.wikia.com/muppet/images/9/94/JohnStephenson.jpg

Answer 1

they were all d.j s  and did the top 40

Answer 2

Hahaha, they are the SUPERFRIENDS!

Answer 3

there all old or dead to this day.

Answer 4

they're all wearing shirt with collar.. the 2nd to the last picture can't be accessed.

Answer 5

They're all men.

Answer 6

They've all got links to their pictures from a single question in YA.