What to know about the mysterious new 'Bridgerton' character Lord Anderson, who was created just for the show

Season three of "Bridgerton" introduces a new character named Lord Marcus Anderson, who's Lady Danbury's brother. Here's what to know about him.

• Season three of "Bridgerton" introduces Lady Danbury's brother named Lord Marcus Anderson.
• But he won't be familiar to fans of the "Bridgerton" book series.
• Lord Anderson was created for the TV show. Here's what we know about him so far.

Warning: There are major spoilers ahead for season three of "Bridgerton."

Season three of "Bridgerton" delivers on plenty of romance, not just for Colin Bridgerton and Penelope Featherington, but also for other members of the Ton.

Part one of season three, comprised of four episodes, premiered on Netflix on Thursday. Among the returning faces are a handful of new characters, including Lord Marcus Anderson (Daniel Francis), the brother of Lady Agatha Danbury (Adjoa Andoh).

Here's everything to know about Lord Anderson and his blossoming romance with another "Bridgerton" character.

Lord Marcus Anderson doesn't exist in Julia Quinn's 'Bridgerton' novels

In Quinn's romance novels, Lady Danbury doesn't have a brother. Like newcomer Lord Debling (Sam Phillips), Lord Anderson is an original character created specifically for the TV series.

When filming for season three began in 2022, Lord Anderson was described as "a charismatic presence who lights up any room he enters, attracting the notice of certain matriarchs in the town — and the ire of others."

Some fans suspected that he'd be a potential suitor for Penelope, but when promotional materials for season three were released, it became clear that his storyline would be intertwined with Lady Danbury and Lady Violet Bridgerton (Ruth Gemmell).

In one teaser, Lord Anderson and Lady Bridgerton were seen exchanging glances — with the matriarch biting her lip — as Lady Danbury observed with dissatisfaction.

Fans who watched the "Bridgerton" spinoff series "Queen Charlotte" will recall Violet telling Agatha that she was considering opening herself up to romance again. So, it makes sense that Violet's season three storyline would involve the possibility of love.

Part 1 teases a potential romance developing between Lord Anderson and Lady Violet Bridgerton

Marcus and Violet first meet outside the Hawkins' Innovations Ball of 1815 during episode three, as he helps her pick her glove off the ground. Marcus approaches her later that night at the ball and Agatha interrupts to reveal that he's her brother who's just visiting town. Even though Violet and Agatha have been friends for years, Violet wasn't aware that she had a brother.

Marcus isn't seen again until episode four, when he dines with Agatha. When asked why he returned to London, Marcus says that his lack of company — and ladies — at his country estate brought him back to town.

Marcus and Violet talk at another ball, where he tells her that he hasn't been to Mayfair since the early days of marriage. When Marcus asks how she passes time in the city, Violet says that she and Agatha enjoy meddling in the lives of the young people. She adds that Agatha "molds society to her will." This is surprising to Marcus, who says that they're becoming "reacquainted," hinting at some tension between him and his sister.

As Marcus and Violet observe Francesca Bridgerton (Hannah Dodd) on the dance floor, they end up talking about their past relationships. Marcus says that his marriage wasn't a love match or even passionate at the onset, but he became fond of her and they were happy until her death.

Violet then mentions that she had a love match, her late husband Edmund Bridgerton. In response, Marcus says he's envious, but hopeful of finding a love match in his "second act."

Agatha leaves the party early but is stopped by Marcus, who asks her to put her molding skills to use in his quest for love.

"I keep meeting the most intriguing woman," Marcus tells her, referring to Violet.

Agatha dismisses him, saying that she's not interested in aiding his raking. But he claims he has pure intentions.

Fans will have to tune into the remaining four episodes of the season to see how Marcus' second act plays out.

Part one of season three of "Bridgerton" is now streaming on Netflix. Part two will be released on Thursday, June 13.