Another character known well to DC Comics fans has been added to CBS' "Supergirl": As revealed Saturday night during Warner Bros. TV and DC Enterainment's panel at Comic-Con International in San Diego, Peter Facinelli has joined the cast as Maxwell Lord, a character best known as a supporting character in the beloved 1980s "Justice League International."

Here's the official description of the character, from Warner Bros. TV: "Maxwell is a green tech billionaire who enjoys a friendly rivalry with Cat Grant and a fascination with National City's newest arrival -- Supergirl."

"Greg [Berlanti], Ali [Adler] and I have been fans of Peter for years," "Supergirl" executive producer Andrew Kreisberg said in a statement. "We're beyond thrilled to have him join us on Supergirl's first adventures bringing the iconic Maxwell Lord to life."

Created by Keith Giffen, J. M. DeMatteis and Kevin Maguire, Maxwell Lord debuted in 1987's "Justice League" #1. First seen as mostly heroic (albeit often humorously self-serving) the character took a notably villainous turn as of 2005 one-shot "Countdown to Infinite Crisis."

Facinelli was a main cast member of "Nurse Jackie," and is likely best known to fans of genre entertainment as Dr. Carlisle Cullen in the "Twilight" films.

"Supergirl" is scheduled to debut Oct. 26 on CBS.