John Lithgow, who is American, is nearing a deal to portray Professor Albus Dumbledore in HBO's upcoming "Harry Potter" series reboot, according to a report in Deadline. When reached, HBO reps declined comment on the report.

The cast for the potential decade-long Harry Potter series might have their fearless Hogwarts leader and first American to play Dumbledore

If reports come to fruition, the six time Emmy-winner, 79, will be the fourth actor to play the old wise wizard after Michael Gambon, who put on the half-moon spectacles after original actor Richard Harris died following Harry Potter and the Chamber of Secrets. Jude Law played a young Dumbledore in the Fantastic Beasts spin off films.