Black Knight is portrayed as an arrogant, enigmatic foe against Shovel Knight. He displays confidence and malevolence during battles with his enemies, even manically, and mockingly, laughing before and during his fights.   However, despite being rivals, he also appears to have some good intentions in his interactions with Shovel Knight, warning him of The Enchantress and her Order of No Quarter to personally save Shield Knight, for which he appears to admire and respect.

For a voice, think Clive Rosfield from FFXVI.