Pessoa famously published under many heteronyms: around 75 different names, each with fully fleshed-out backgrounds, styles, appearances and philosophies. Taking this a step further, Não Sou Nada gives flesh to these characters, all working together under Pessoa, enacted by Miguel Borges, at the publishing house The Nothingness Club.
| Actor | Role |
|---|---|
 Miguel BorgesFernando Pessoa | Fernando Pessoa |
 Victoria GuerraOfélia Queiroz | Ofélia Queiroz |
 Albano JerónimoÁlvaro de Campos | Álvaro de Campos |
 Vítor CorreiaRicardo Reis | Ricardo Reis |
 Paulo PiresNot listed | Not listed |
 Miguel NunesAlberto Caeiro | Alberto Caeiro |
 Paulo CalatréQuaresma | Quaresma |
 Valdemar SantosNot listed | Not listed |
 António DurãesAntónio Mora | António Mora |
 Marina AlbuquerqueNéant | Néant |
 David AlmeidaJoaquim Moura-Costa | Joaquim Moura-Costa |
 Paulo FurtadoOswald Kent | Oswald Kent |
 Marco PaivaNot listed | Not listed |
 Miguel MoreiraNot listed | Not listed |
 João Delgado LourençoJosé Rasteiro | José Rasteiro |
| BBernardo SarmentoCharles Robert Anon | Charles Robert Anon |
 Bernardo Santo TirsoProf. Trochee | Prof. Trochee |
 Eduardo BritoEduardo Lança / Benjamin V. Cymbra | Eduardo Lança / Benjamin V. Cymbra |
 Leonor KeilNympha Negra | Nympha Negra |
 Laurence Alliston-GreinerAlexander Search | Alexander Search |
 Pedro BernardinoPêro Botelho | Pêro Botelho |