Ciel is twelve in the beginning of the anime, then turns thirteen. The manga may be the same, but I'm not sure.
In Black Butler, Ciel named Sebastian after a dog he used to have.
Kuroshitsuji (Black Butler)
Ciel Phantomhive is shot in: Black Butler Season 1, Episode 23. "His Butler, Up In Flames" and an illusion of him is shot in: Black Butler Season 3 'Book of Circus', Episode 1. "His Butler, Presenting"
Undertaker calls Ciel by his title 'Earl'.
Yes.
In Black Butler, Ciel named Sebastian after a dog he used to have.
Kuroshitsuji (Black Butler)
Ciel Phantomhive is shot in: Black Butler Season 1, Episode 23. "His Butler, Up In Flames" and an illusion of him is shot in: Black Butler Season 3 'Book of Circus', Episode 1. "His Butler, Presenting"
Ciel Phantomhive ; he is voiced by Brina Palencia .
Undertaker calls Ciel by his title 'Earl'.
Yes.
Ciel Phantomhive slays
Yes, during the Circus arc Ciel does meet Joker.
Sebastian Michaelis is a demon, and a butler to Ciel Phantomhive, from the anime/manga Black Butler.
Black Butler, Season 2, Episode 7 'Deathly Butler'.
Ciel Phantomhive gets shot in Episode 13 of Season 1 of the anime "Black Butler."
I think he is 100+ years old or something and if he is 100+ he will be 16-20 years, which is much older the Ciel but i do ship Sebastian and Ciel-