EastEnders' Freddie Slater is back in Walford, for the first time since he left when he was a baby.
He's now all grown up, with Bobby Brazier taking on the role in his acting debut.
Bobby will be a familiar face to many, as he is the son of TV presenter Jeff Brazier and late Big Brother contestant Jade Goody.
As for Freddie, it will be interesting to see what Little Mo Slater's son has been up to since his departure in 2006.
Now 18 years old, Freddie has headed back to Walford to join his family including his aunt Kat Slater, with it teased he could be on a mission that will "end in heartbreak".
But what do we know about Freddie and his past, and who is Freddie's father?
Who is Freddie, and how is he related to the Slaters?
Freddie Slater is the son of Little Mo, who was born on the show in 2004.
He remained on the show until 2006 when he moved away with his mum.
Freddie is the nephew of Kat Slater, who is still in Walford, and he is cousin to Kat's children Zoe, Dermott, Tommy, Bert and Ernie.
The teenager is also related to Stacey and Jean Slater, Mo Harris and other Slaters who are no longer on the show.
Who is Freddie's father?
Freddie's father on the show is a man named Graham Foster.
Freddie was conceived when Little Mo was raped by Graham in 2003. He had befriended her before making his true intentions clear.
Getting her alone in the pub she worked in one night, he assaulted her and wouldn't let her leave.
After Mo's ordeal was revealed, later down the line Graham was sentenced to eight years in prison.
It's not clear if Freddie has had contact with his dad or his dad's other children since then, but this is unlikely as Mo has claimed his dad is Billy.
Who is Little Mo, and what happened with Billy Mitchell?
Little Mo, Freddie's mum, was a fan favourite on the show who had an on/off romance with Billy Mitchell.
Billy ended his romance with Mo after struggling with raising baby Freddie as his own, while the pair stayed friends.
Little Mo is one of the original Slaters on the soap, and the daughter of Charlie.
She hasn't returned to the soap since her exit, but fans are hoping Freddie's arrival might lead to a comeback.
What's ahead?
On joining EastEnders, actor Bobby said: "I’m really excited to be joining the cast of EastEnders - so far it’s been perfect.
"Everybody has been so beautiful to me and made settling in easier than I could’ve hoped. Stepping into the acting world has always been a vision of mine and doing that with EastEnders as a Slater is a blessing, I'm very grateful.
"Loving every minute of Freddie so far and can’t wait to see what’s in store for him in Walford."
Chris Clenshaw, Executive Producer, added: "Freddie Slater is a chaotic 18-year-old with a sensitive soul. A modern-day lad who’s in touch with his spiritual side.
"He’s philosophical, accepting, but full of mischief and makes mistakes. Bobby is an amazing young addition to the EastEnders cast who brings heart and humility to the role of Freddie Slater and I can’t wait for audiences to get to know him."
EastEnders airs Mondays to Thursdays at 7:30pm on BBC One and BBC iPlayer.
