Traycho Kostov Dzhunev was a Bulgarian politician, the leading figure of the Bulgarian Communist Party.

Vasil Atanasov Ivanovski also known by his pseudonym Bistrishki, was a Bulgarian communist activist, publicist, theoretician of the Macedonian nation within the IMRO (United). According to the historiography in North Macedonia, Ivanovski is its founder and a prominent "fighter for the affirmation of the Macedonian national identity", and according to the Bulgarian historiography, he is known "for his wanderings on the Macedonian question". Per the Macedonian historian Ivan Katardžiev, such activists of the IMRO (United) and the Bulgarian Communist Party never managed to break with their pro-Bulgarian aspirations.