Harry Potter fan-favorite, Sirius Black, had a lot of wisdom and sassy one-liners to share with his godson and those who crossed him.

Angry “Opie and Anthony” fans are canceling their subscriptions to SiriusXM after the satellite radio company fired co-host Anthony Cumia earlier this week for making racially inflammatory tweets.

It certainly makes sense. Do you agree with this Harry Potter theory about Sirius Black's house elf Kreacher?

“Sirius is known to have a very high opinion on James and Lily, he even gets angry when Peter mentions them in front of Harry. This is because Sirius treasured James and Lily’s friendship more ...

XM Satellite Radio Holdings and Sirius Satellite Radio are facing their last hurdle, as Deal Journal mentioned Monday: approval by the five commissioners (below, left) of the Federal ...

In an exclusive Post interview, Ben Barnes talks about how "Harry Potter" fans used to cast him as Sirius Black — and whether he would play him in the upcoming HBO show.

It was Sirius Black. This illustration is featured in the "Cat, Rat and Dog" chapter of the newly released illustrated edition of Harry Potter and the Prisoner of Azkaban.

We liked you, Gary Oldman. We really did. Don’t you know, as the personification of Sirius Black — the closest thing Harry Potter had to real family aside from his friends — that you ...

Last month J.K. Rowling tweeted that she would give us Sirius Black’s birthday if Scotland won their rugby match. The Scottish were victorious, and today we are able to celebrate Harry’s ...

And, keep in mind, Sirius XM operates in a broad media space where anything but double-digit revenue growth should be unacceptable to management, let alone investors.