Even though uncredited - as usually happens in Brazilian voice-over acting - he's is the first and ranked as the best voice for The Flintstone's Barney Rubble. He made a duo with the late Marthus Mathias, the best Fred Flintstone performer. Nowadays other voice-over actors impersonate the voice characterization Márcico created for Barney, in the same way they do with Mathias' guttural voice.
