Ulrich Stern is a member of the Lyoko Warriors, a student at Kadic Academy, and one of the two tritagonists of Code Lyoko. His romantic love interest is Yumi, whom he falls in love with during the series and often finds himself struggling with his romantic feelings for her.
Ulrich is the tallest male of the group (tallest group member being Yumi), with scruffy-looking dark brown hair and dark eyes. In the first three seasons, he wears a vest with a shirt over the top and cargo pants, all in shades of green, with trainers. After season three, his outfit changes to a dark green shirt, army jacket, and blue-gray jeans.
Ulrich's original Lyoko form is similar to a Samurai. His outfit has a Hannya mask on his back, which is used in Japanese Noh theater to represent a jealous female demon. He also has a single Katana sheathed on his left hip. In the fourth season, this changes to a form-fitting yellow and brown body suit. He also gets a second Katana and they are both sheathed on his back.
He comes from a privileged background as the son of upper middle class parents and (as briefly mentioned in the episode Routine) possibly receives a large allowance each month.[1] However, unlike Sissi, it appears that Ulrich rejects the snobbery of the upper classes.
Ulrich lives on the Kadic Academy campus, sharing a room with his friend Odd and Odd's dog, Kiwi.
Although he is a fairly withdrawn individual, he has a fair amount of friends and is even the object of affection for many girls in the school - mainly for his looks, athletic ability and alluring personality. The most notable is Sissi, who has had a strong affection for Ulrich since grade school and is the most persistent of his admirers, often leading to trouble for the rest of the gang. His strong feelings for Yumi, however, keep him from pursuing any other romantic attention and to frequently reject Sissi's many romantic offers.
On Lyoko, Ulrich is an extremely effective warrior and is often known to be the best fighter among the group, which is shown in several episodes. With his saber, he can destroy any monster in close combat as well as deflect attacks. He is the only person whose abilities are short-range only, since William also has Super Smoke.
Ulrich is most notably passionate about martial arts and practices Pencak Silat (an Indonesian combat style permitting to strike any opponent), which becomes a great asset for him when defending against X.A.N.A.'s plots on both the real world and Lyoko. However, he trains harshly in all athletic pursuits, especially soccer, as shown in Zero Gravity Zone. He is probably the most dangerous of the gang in both worlds, and not one schoolboy, even the strongest one, dares to attack him.
He is in 8th grade for Seasons 1-2, 9th through Seasons 3-4, and 10th as of Evolution.
