"'Jude Law is a phenomenally talented actor whose work I've long admired and I'm looking forward to finally having the opportunity to work with him," returning director David Yates told the site. "I know he will brilliantly capture all the unexpected facets of Albus Dumbledore as J.K. Rowling reveals this very different time in his life."
Richard Harris played Dumbledore in the first two original Potter movies. When Harris died in 2002, Michael Gambon took over the role.
Some fans will no doubt be disappointed by the casting -- there was a groundswell of support among Potterheads for Richard Harris' son, Jared Harris, who was recently seen portraying King George VI in Netflix's much acclaimed series "The Crown."
Filming on the "Fantastic Beasts" sequel begins this summer, with a November 2018 release date planned. "Fantastic Beasts and Where to Find Them," a Potter spinoff that follows Newt Scamander (Eddie Redmayne), a British wizard and former student of Dumbledore who finds adventure in America.