Written by author Patrick Ness, the eight-part series set is in Coal Hill School, the school attended by the Doctor’s granddaughter in the show’s original 1963 debut episode and more recently shown as the workplace of former companion Clara Oswald.
Taking place in contemporary London, the show features a group of Coal Hill sixth formers and stars Greg Austin, Fady Essayed, Sophie Hopkins, Vivian Oparah, Katherine Kelly, Nigel Betts, Paul Marc Davis, Anna Shaffer and Cyril Nri.
Class will be available via the BBC Three section of iPlayer.
The Doctor will make an appearance in the opening episode of the series which will make its debut on Saturday 22 October.
BBC bosses also revealed the titles for episodes one and two – For Tonight We Might Die and The Coach with the Dragon Tattoo
Commenting on his involvement, Capaldi said: “The Doctor Who family is growing, and it’s fantastic to be able to welcome the young new cast of Class in to the Whoniverse.”
Series creator Patrick Ness, commented: “At last, we can tell you a little more about Class! Though there are still many, many secrets to come. Many. Like, a lot.
“But of COURSE, the Doctor is in episode one! That’s how these things are done. Truly, though, I can’t wait for everyone to see the show; we’ve worked so hard and I’m so proud of it. Soon, soon…”
BBC Three Controller, Damian Kavanagh added: “We know lots of BBC Three fans are Doctor Who fans so Class on BBC Three is a perfect fit. It’s nice to be back as part of the Doctor Who family.”