"Goliath from Gargoyles, boys! Gargoyles was a successful cartoon series originally on ABC and later Fox Kids. Produced by Disney, it created controversy because it was one of Disney's more violent cartoons - lots of guns on the show. It can now be seen on Toon Disney in the States. The show ran from 1994 to 1997 - and was at it's heightest popularity in (drumroll please) in 1995."
Ryan makes it sound interesting, I'd quite like to see the cartoon series now!
Some research following Ryan's lead me to find out that he was sold originally with wings and an axe thing (both are missing) but at least he still roars. The listing where I identified the exact version to buy him was here. You can see his original packaging below. I don't know what he's worth in this state but it cost us 10p and I doubt we'll be approached with offers for him, LOL!