Martin Freeman has delved into the feedback he received after donning a Scouse accent for his role in the BBC drama, The Responder. The crime drama is returning for a second season on Sunday night on BBC One as Freeman’s Chris Carson reunites with the likes of Adelayo Adedayo’s Rachel Hargreaves, Emily Fairn’s Casey and Josh Finan’s Marco. There’s also a new antagonist in town after the explosive events of season one saw Carson’s equally questionable pal and criminal player Carl (played by Ian Hart) killed off. This time around, Chris lands himself in a fresh series of sticky situations Adam N…