The Secret Life of the American Teenager‘s Ken Baumann is headed to Castle!

The 21-year-old actor has signed on to play Alexis’ (Molly Quinn) new boyfriend, it was announced earlier today.

In his first episode “Punked,” Richard Castle (Nathan Fillion) is dealing with the fact Alexis is excited about having her first boyfriend, but he’s unnerved that she’s not confiding in him with all the details.

Castle‘s new season will premiere Monday, September 20 @ 10PM ET/PT on ABC.

TELL JJJ: Do you watch Castle? Do you think Ken is a good fit for Molly?

Molly Quinn models a Citron Green T2U bottle as she arrives at Melanie Segal’s Teen Choice Retreat Presented by T.J.Maxx held at The Magic Castle in Hollywood on Thursday afternoon (August 5).

The 16-year-old actress will next be seen in the upcoming Avalon High, opposite Gregg Sulkin and Brittany Robertson.

Molly will play Jen, the cheerleader girlfriend of Will (Sulkin). Did you catch our first look at the DCOM?

Check out your first look at the upcoming Disney Channel Original Movie, Avalon High!

Based on the novel of the same name by Meg Cabot (psst, she wrote “The Princess Diaries” too), the movie follows Allie Pennington (Brittany Robertson), a transfer student to Avalon High, who discovers that her new classmates are reincarnations of King Arthur and his Court.

Gregg Sulkin, Molly Quinn, Joey Pollari, Devon Graye and Steve Valentine also star.

Avalon High premieres THIS NOVEMBER!

Gregg Sulkin and Britt Robertson are heading back to Camelot!

The duo are joining Molly Quinn and Joey Pollari in a new DCOM based on Meg Cabot‘s book of the same name called Avalon High.

In the upcoming movie, Allie (Robertson) is ecstatic when her parents, traveling professors who specialize in King Arthur’s legend, tell her she will be staying at Avalon High until she graduates. She can finally join the track team, make new friends and be a normal high school student. But shortly after arriving, Allie discovers that something strange may be afoot.

While researching a term paper on King Arthur’s legacy, she begins to notice some interesting parallels between the past and the present – from handsome quarterback Will (Sulkin), his cheerleader girlfriend, Jen (Quinn), and their best friend, Lance (Christopher Tavarez), to Will’s brooding step-brother, Marco (Devon Graye), a quirky kid named Miles (Pollari) and football players who act like knights of the roundtable.

The deeper Allie searches, the more convinced she is that her school is a contemporary Camelot, and it’s up to her to solve of the mystery of Avalon High before notorious traitor Mordred wins again.

Filming in New Zealand, Avalon High is set to premiere later this year.

WHAT DO YOU THINK of the newest DCOM — YAY or NAY

Molly Quinn shows off her stunning smile as she attends the Paley presentation of Castle held at The Paley Center for Media on Tuesday evening (March 16) in Beverly Hills.

The 16-year-old actress/model joined costars Stana Katic, Nathan Fillion and Tamala Jones at the presentation.

In the two part season finale of Castle, Beckett (Katic) and Castle (Fillion) work with a skilled federal agent (Dana Delany) to track down a clever serial killer. It all starts THIS Monday, March 22 @ 10PM ET/PT on ABC.

10+ pics inside of Molly Quinn… More Here! »

Molly Quinn rocks the red as she arrives at the opening night performance of STOMP at the Pantages Theater in Hollywood on Tuesday night (January 26).

The 16-year-old Castle cutie paired her military jacket with Ed Hardy open toe heels which read “Love Kills” on the back.

In the next new episode of Castle, “Suicide Squeeze,” a beloved former major league baseball player is found dead after a goodwill trip to Cuba. The investigation, which includes running into Joe Torre, leads the detectives into New York’s Cuban community to solve the murder. Meanwhile, Alexis’ (Quinn) genealogy project forces Castle (Nathan Fillion) to consider the identity of his unknown father.

“Suicide Squeeze” premieres Monday, February 8 @ 10PM ET/PT on ABC.

More Here! »

Molly Quinn shows off her pearly whites as she attends the Fraggle Rock event held at Kitson in West Hollywood on Wednesday night (December 9).

In addition to her role on Castle, the 16-year-old actress also plays Belinda Cratchit in the newest movie of A Christmas Carol with Jim Carrey and Sammi Hanratty.

A Christmas Carol, based off the Charles Dickens novel of the same name, is an animated adventure about a Victorian-era miser taken on a journey of self-redemption, courtesy of several mysterious Christmas apparitions.