'Supergirl' trivia and fun facts

The sound effect used in 'Supergirl' for her X-ray vision is the same one used in 'Smallville'.

Ironically, DC Comics canceled the Supergirl comic book title close to this series' premiere in 2015. It was announced the following year that it would return as part of the "DC: Rebirth" event (as "Supergirl: Rebirth"), incorporating many elements of this series.

Melissa Benoist had an eye injury and wore an eye-patch when she put on the Supergirl outfit for the very first time.

Melissa Benoist is the second 'Glee' cast member to star as a DC comics superhero. Grant Gustin portrays the title character in 'The Flash'.

Just as Stephen Amell ('Arrow') and Grant Gustin ('The Flash'), Melissa Benoist was the very first of a thousand actors to audition for the role of Supergirl.