1. Artemis is a master of technology, while Ciel is definitely not.

Many readers of the Artemis Fowl series would probably know Artemis as a technology specialist, hacking into bank accounts and taking their contents as his own. Ciel, on the other hand, has very little technology in his time period, and (this is just my personal guess) if he had somehow lived to our time, he would have a very hard time adjusting....

2. Their astrological signs are different.

Artemis's birthday is September 1st, making him a Virgo. This makes sense, as in the کتابیں Artemis seems to reflect the traits of a Virgo....