The mum of missing TV star and rugby player Levi Davis has pleaded for the 24-year-old to get in touch.
His last confirmed location appears to have been The Old Irish Pub near the famous tourist street La Rambla.
He reportedly had no money or clothes on his person at the time of his disappearance - only a small backpack.
Levi had travelled to Barcelona from Ibiza, and while his last location was confirmed by a video sent from the pub, he was not present in the clip or speaking in it.
His mum Julie, 51, said: "Levi has been quite down lately and the manner in which he has disappeared has left us all very worried.
"He left everything behind in Ibiza and just upped and left.
"He told me he wanted some space to clear his mind and left behind medication he was taking.
"I can only appeal to Levi or anyone who has seen him to get in touch to put our minds at rest as everyone who loves him is frantic with worry."
Richard Squire is a close friend of the 24-year-old and was the last person to speak to him.
He said Levi told him he was going to meet friends in Barcelona.
"He announced suddenly that he was going to meet friends in Barcelona," Richard said.
"But he didn't say who they were and we haven't heard from him since I received a video from the Irish pub on October 29.
"There's been no word from him since and his family and everyone who knows him is getting increasingly worried."
Outside of his career as a rugby player, Levi was known for his appearances on The X Factor and Celebs Go Dating.
Former England Rugby player Ben Foden also appealed for information about the missing winger, who won widespread praise after he came out as bisexual.
"I'm extremely concerned for Levi's safety and well being," Ben said in a statement.
"He's a kindhearted, talented soul who I'm proud to call a friend.
"He's bravely shared with the public his personal struggles with his sexuality and mental health and right now it's important he knows how loved he is and the support he has available.
"Anyone with any information or sightings please email: [email protected]."Featured Image Credit: PA/Alamy Doug Peters/Alamy