Critter Crazy,
Loki is what we call a “Velcro cat”, and a mighty cute one at that.
Consider yourself lucky that he has chosen you to be his favorite human.
My calico has always been like that. She is my little shadow, follows me everywhere and craves attention all the time which hasn’t changed in the 13 years she’s been with me.
Like Cit Cat said, some cats are more affectionate than others and there is nothing wrong with him.
At his age he probably wants to play all the time, and if he is keeping you too busy you might want to consider getting him a playmate. How does he get along with your gorgeous Bloodhound?