Casting for six major characters in HBO's upcoming 'Harry Potter' series, including Dumbledore, Snape and Hagrid have been announced.

The acclaimed actor, 53, will star as the legendary Hogwarts groundskeeper in the much-anticipated show, which is set to begin filming this summer.

Where are the original Harry Potter cast members now? New HBO series reveals adult characters - There are still more roles to cast, including the all-important trio of Harry Potter himself and his two ...

HBO has announced the cast of its “Harry Potter” series. The upcoming series will be a faithful adaptation of the “Harry Potter” book series, exploring every corner of the wizarding world, HBO said.

John Lithgow, a six-time Emmy and two-time Tony Award winner, will star as Albus Dumbledore.Lithgow also is an Olivier winner and a BAFTA and Oscar nominee. Janet McTeer is cast as Minerva McGonagall.

The Harry Potter TV series for HBO is on its way and we're here to gather every confirmed cast member that will be part of this much-anticipated reboot, including John Lithgow as Albus Dumbledore, ...

HBO’s "Harry Potter" confirmed Paapa Essiedu, Janet McTeer and John Lithgow as cast members for the upcoming show. See who else has joined the cast so far.

HBO just confirmed the six adult leads from its upcoming Harry Potter TV series and pledges a "faithful adaptation." ...

Nick Frost, Paapa Essiedu, Janet McTeer and Paul Whitehouse will appear in the forthcoming Harry Potter TV series, US network ...

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John Lithgow, Paapa Essiedu, Janet McTeer, and Nick Frost are now confirmed to appear in HBO’s TV adaptation.