Uburyo bwa casting bwabonye uburyo butandukanye bwo gutara mubintu bya pulasitiki byuma, aribyo gushonga, gusohoka, hamwe nicyuma cyamazi yakubiswe, cyangwa ubundi buryo bwo guterana mbere yo guterana byatewe mubibumbano, bizakonjeshwa neza nyuma yuburyo bwubuhanga nko kubona hamwe imiterere runaka, ingano n'imikorere.