The pair last worked together under McGovern for the BBC drama Accused, which aired for two series from 2010 to 2012.
Bean plays the role of Mark Hebden, a teacher, husband and father, who killed an innocent man in an accident and has been sentenced to four years in prison.
Graham, meanwhile, stars as Eric Reid, a prison officer who tries to protect those in his charge, but is forced to choose between his principles and his love for his family when his weakness is identified by one of the most dangerous inmates.
McGovern said of the new series: "The BBC have given me a brilliant young director ( and two of the greatest actors on the planet. I am overjoyed.”
Bean said: "Getting to be involved in a Jimmy McGovern drama again is a real privilege and it will be great to be reunited with Stephen. Mark Hebden is another of Jimmy’s complex and superbly-written characters and I am looking forward to bringing him to life on screen."
Graham added: "It is an absolute honour to be working with Jimmy again, I’m feeling blessed. I’m excited to be working with Lewis as I have heard so many incredible things about him as a director, I can’t wait to get stuck in. Of course, I am made up to be back on set with Sean."
Time will begin filming in Liverpool this autumn.
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