King Alfor is the deceased king of Planet Altea and father of Princess Allura. He is the one who built the Black Lion from a comet that crashed into Zarkon's home planet during a time when the Alteans held an alliance with the Galrans.
Ten thousand years before Shiro's escape from the Galra Empire and return to Earth, Alfor placed Allura and Coran in a deep sleep, scattered the Lions of Voltron, and led Zarkon to believe they had been destroyed. How he met his end is unknown. In the present, Alfor appears as an artificial intelligence created by memories stored within the Castle of Lions until he becomes corrupted and is erased forever by Allura to save the team.
Alfor has the appearance of a tall, older Altean man with brown skin, white hair, a white full beard. As an Altean, his ears are pointed at the top rather than rounded, and he has small sickle-shaped marks of light blue situated on his cheekbones, right under each of his blue eyes. The pupils of his eyes have a noticeable pink in the center of them. Alfor's hair is cut just above his shoulders and he has long bangs swept to the right of his face.
The king wears royal white armor accented with gold and the bright Altean blue with a darker blue cape that reaches his ankles and is kept clasped over his right shoulder.
King Alfor has shown to have skills with magic, able to use some sort of energy or spell to make Allura fall unconscious. He has been suggested in flashbacks to be a "sacred" Altean that can perform a ceremony to restore a Balmera with Quintessence after extracting its Crystals. Previously, the king of Altea was the pilot of the Castle of Lions, implying he was one of the rare Alteans who could power a teludav device and create wormholes.
- When Coran takes the new Paladins to the original Paladins' favorite restaurant, he describes the Paladins' table as having five names in each respective Paladin's color. He points out King Alfor's name, which does not appear any particular Paladin color, suggesting the king was not a Paladin.
|Team Voltron||Allura ◆ Coran ◆ Hunk ◆ Keith ◆ Lance ◆ Pidge ◆ Shiro|
|Galra Empire||Beta Traz Warden ◆ Haggar ◆ Haxus ◆ Lotor ◆ Morvok ◆ Olkarion Commander ◆ Prorok ◆ Sendak ◆ Galra Commander ◆ Zarkon|
|Blade of Marmora||Antok ◆ Kolivan ◆ Thace ◆ Ulaz|
|Galaxy Garrison||Iverson ◆ Matthew Holt ◆ Samuel Holt|
|Arusians||Arusian King ◆ Klaizap ◆ Moontow|
|Balmerans||Shay ◆ Rax|
|Mer Aliens||Blumfump ◆ Florona ◆ Luxia ◆ Plaxum ◆ Swirn|
|Olkari||La-Sai ◆ Lubos ◆ Ryner|
|Other Aliens||Alfor ◆ Baujal ◆ Myzax ◆ Nyma ◆ Rolo ◆ Sal ◆ Slav ◆ Varkon ◆ Xi|
|Other Humans||Colleen Holt ◆ Keith's Father|
|Robots||Beezer ◆ Rover|