Percival appears as a named knight of the Round Table in the anime series "Entaku no Kishi Monogatari: Moero Arthur." His sole documented episode is titled "Master Percival of the Rose" (槍の名人パーシバル), marking his only confirmed narrative appearance. The character's origins, personality traits, interpersonal relationships, and story arc—both in the main series and its sequel "King Arthur: Prince on White Horse"—remain unspecified in available sources. Percival is identified exclusively as a minor figure within the ensemble cast.