While singing at the bar, Adriana Esteves and Danielle Winits performed their characters' love themes.

Carlos Lombardi was inspired by The Bourne Identity (2002) to create the amnesiac Esteban's mysterious background.

Esteban is named after Spanish comic book artist Esteban Maroto. Carlos Lombardi is a comic book fan and added elements from such media on his TV dramas. Esteban's "nerdy" counterpart - known by Brazilian fans as "Light Esteban" - was likely a parody of Clark Kent.

Unusual for a Brazilian telenovela, features cameos of more than 90 actors throughout the episodes to provide information and clues on Esteban's past.

Third collaboration between Carlos Lombardi and Wolf Maya after Uga Uga (2000) and The Fifth of Hell (2002). Maya, however, dropped out four months after the premiere to direct Her Own Destiny (2004) and was replaced by Roberto Talma.

Carlos Lombardi: [bare chested males] Esteban, played by Marcos Pasquim, often appears shirtless.