Jonathan Morris is a character in the Castlevania video game series. He is a vampire hunter and the son of John Morris.
Jonathan made his debut as one of the two protagonists in the 2006 Nintendo DS game Castlevania: Portrait of Ruin, tagging along witch partner and childhood friend Charlotte Aulin. He later appeared in the multiplayer crossover games Castlevania: Harmony of Despair and Castlevania: Grimoire of Souls.
Jonathan Morris is a descendant of the Belmont clan of vampire hunters. Like his father, John Morris, Jonathan eventually wields the legendary Vampire Killer whip to stave off the minions of evil, although he does not start off with the whip's full power due to his not being of the main Belmont lineage. While Jonathan starts out using the legendary weapon as a normal whip, he will also be able to equip other kinds of weapons, including swords, axes, and great swords.
As a child, Jonathan was raised alongside the Fernandez/Belnades descendant Charlotte Aulin. The two shared a strong, supposedly platonic friendship. In 1944, Morris and Aulin worked together to foil the destruction of mankind by the vampire artist Brauner and his twin vampire daughters, Stella and Loretta.
Jonathan shows animosity toward his father for not teaching him how to unlock the full potential of the Vampire Killer. However, as the game progresses and he meets Wind, Jonathan begins to fully appreciate and respect his father.
It is possible that Jonathan would be the one to pass the whip onto Julius Belmont and maybe play a part in the Demon Castle war. He or his son/daughter would have given the Vampire Killer to Julius Belmont in order to defeat Dracula.
Jonathan, or rather, a memory of him from the Grimoire of Souls, was stored inside a Grimoire modeled after 1944 Transylvania. While fighting the Dullahan, the Grimoire version of Jonathan ended up nearly killed due to the Grimoire being remotely rewritten by another party which caused the Dullahan to become exponentially stronger, which also affected his partner Charlotte thanks largely to her ties to that era. A group composed of Genya Arikado, as well as simulacrum versions of Simon Belmont, Charlotte, a younger version of Maria Renard and Shanoa later rescued him before he could be killed and proceeded to vanquish the Dullahan and seal away its Vital Soul. He later joined the group, and also took the opportunity to vent to Simon his frustrations regarding the harsh life he and his father had to endure due to the Belmonts' disappearance, while acknowledging that Simon was in no way responsible for any of the difficulties. Jonathan also wished to train alongside Maria to not get idle, although Simon, overhearing this, enthusiastically agreed and had him be his training partner, much to Jonathan's horror.
And he is reprised by Liam O'Brien in the English dub and Takahiro Sakurai in the Japanese dub.