Washington, Sept. 5 -- HBO has announced three new cast additions for Season 2 of its upcoming Harry Potter series, revealing the actors who will portray Dobby, Ginny Weasley and Tom Riddle as the adaptation moves into the story of 'Harry Potter' and the 'Chamber of Secrets.'

Lenny Rush will play Dobby, Bonnie Hill will portray Ginny Weasley, and Billy Barratt will take on the role of Tom Riddle.

Hill replaces Gracie Cochrane, who played Ginny in Season 1 but exited the role due to "unforeseen circumstances," as per Variety.

The first season of the Harry Potter television series has wrapped and is set to premiere on HBO on December 25.

Season 2 is currently in pre-production at Leavesden Studios outside London and will be based on the...