Counting Down recently reported that

Counting Down recently reported that British actor Robson Green is in consideration for the role of Sirius Black. The production office at Green’s company, however, says they have heard nothing of the rumor, though someone might have mentioned his name in casting, and that they are “sure that he would love to be considered for the role of Sirius.”

You can learn more about Robson Green at his fansite: RobsonGreen.com.