Katherine Parkinson joins cast for new Harry Potter TV series - The IT Crowd star will join the HBO TV series of the popular ...

"The Crown" actor Bertie Carvel and "The IT Crowd" alum Katherine Parkinson have joined the cast of HBO's "Harry Potter" ...

The Harry Potter TV series has been announcing new cast additions left and right. After the announcement for the golden trio's casting, we have a few more casting announcements to add to the list.