The youngest son of Connected stars Venetia Quick and Martin Thomas appeared in Sunday night's episode of Love/Hate. Warning: Spoiler Alert!
Casper Thomas was briefly featured on screen as Damien, the late son of Patrick the pipe bombmaker, played by John Connors.
Patrick kissed the character's headstone after breaking down at his graveside.
Mother Quick tweeted: "There's our Caspie in #lovehate."
She added: "I know they dyed his hair so he looked a little different!"
Patrick's older son, Brandon, was injured in Sunday night's episode and was left fighting for his life following another attempt on his father's life by Nidge (Tom Vaughan-Lawlor).
Connected continues on Tuesdays and Thursdays on RTÉ Two at 10:30pm.
There's our Caspie in #lovehate pic.twitter.com/xiJjSFxIRC
— venetia quick (@venetiaquick) October 26, 2014@audfarrell ha! I know they dyed his hair so he looked a little different!
— venetia quick (@venetiaquick) October 27, 2014@RaynaConnery the little one on the gravestone!
— venetia quick (@venetiaquick) October 27, 2014