Because you like Lieutenant Worf in Star Trek: The Next Generation
Frederick Frankenstein is an eccentric (O.K., maybe a little insane) professor who is excited to be delving into his family's past. See them in Young Frankenstein.
T'Challa is a regal superhero with the weight of the world (and particularly his nation) on his shoulders. See them in Marvel Cinematic Universe.
Prideful and psychotic tendencies combine to make Dr. Eggman a dangerous and villain who will squash anyone in his path. See them in Sonic the Hedgehog.
Count Olaf is a traveling actor, except he can't act and his homicidal tendencies make finding work pretty difficult. See them in Lemony Snicket's A Series of Unfortunate Events.
A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.
N'Jadaka is a righteous man with a violent agenda. See them in Marvel Cinematic Universe.
For Jack Pearson, the best thing about having triplets is giving three times the love. See them in This Is Us.
Point the fun-loving Pippin Took towards second breakfast, and he's one happy hobbit. See them in The Lord of the Rings.
The Genie is the perfect buddy, granting every wish we might have and keeping life good-spirited. See them in Aladdin.