Last month, it was confirmed that Todd is returning to the cobbles for a "short storyline" later this year.
Speaking to the Manchester Evening News about his Corrie comeback, Langley explained: "It will be great to come back in and do some proper acting.
"The character is an interesting one and, of course, the Grimshaw family are still in the show, so there's lots of potential there. I've not even been told what my storylines will be, but I'm available when they want me so I jumped at the chance.
"I had a chat with the producers the other day and they were interested in me coming back for a short while and it will fit in with the tour I'm on at the moment with Calendar Girls."
Todd - who was the ITV soap's first acknowledged gay character - joined Corrie in 2001 and remained in Weatherfield until 2004. In 2007, fans saw him make a brief return to the show for his half-brother Jason's (Ryan Thomas) wedding, before he headed back to his new home of London.