IRISH ACTOR ALAN O’Neill has died, his casting agent has confirmed.

The actor’s agent confirmed the death this morning after TMZ reported that he was found dead in his apartment in Los Angeles on Wednesday night.

In a statement to TheJournal.ie, O’Neill’s casting agent Annette Walsh said: “It’s with great sadness I can confirm the passing of Alan O’Neill, a brilliant, funny and kind human being.

“My thoughts are with his partner, children, family and friends at this time.”

O’Neill was best known in Ireland for his role as Keith McGrath in Fair City between the years of 2006 and 2012.

He later moved to the US, where he secured a role on the hit TV show Sons of Anarchy for season six and seven.

“I’ll personally miss knowing Alan isn’t sharing the planet with us. Despite the miles between Los Angeles and Dublin,” Walsh added.

Tributes have been made to the actor, as former co-stars and fans pay their respects.

O’Neill’s Sons of Anarchy co-star Timothy V Murphy tweeted: “My good friend Alan O’Neill died today… we worked together on the Sons of Anarchy… My condolences to his family.”

Meanwhile, Fair City actor Jenny Dixon said that it was a “privilege” to work with O’Neill. Dixon worked with O’Neill on a short film called Invisible.

“One of the first films I did and a privilege to act across from Alan O’Neill. A great friend who taught me so much. Thank you for your kindness. So very sorry to hear of your passing,” Dixon said.

“A great man, sadly missed. My thoughts and prayers to you and to your family.”