Nevermind New Girl... who's the guy? Zooey Deschanel gets distracted on set by her shirtless new co-star Alan Ritchson

By Christine Rendon for MailOnline

Spoiler alert!

Zooey Deschanel was likely distracted by New Girl's latest cast member on Thursday.

According to TV Line, 29-year-old Alan Ritchson will be the latest guest star in the program, and the Smallville actor put his incredible physique on full display as he sauntered around the set shirtless.

Meanwhile, the 34-year-old New Girl star was spotted performing a series of costume changes, as she slipped out of a casual ensemble in favour of a chic black-and-white frock.

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New scenes: Zooey Deschanel filmed new scenes for the upcoming fourth season in Los Angeles on Thursday alongside her handsome new co-star Alan Ritchson
New scenes: Zooey Deschanel filmed new scenes for the upcoming fourth season in Los Angeles on Thursday alongside her handsome new co-star Alan Ritchson

New scenes: Zooey Deschanel filmed new scenes for the upcoming fourth season in Los Angeles on Thursday alongside her handsome new co-star Alan Ritchson

Yet no matter how lovely Zooey's chic frock was, it was Alan's eye-catching physique that likely drew the most attention that day.

Clad in only a pair of grey sweatpants, the hunky actor paraded his sculpted physique during what appeared to be an idle moment in filming.

His chiseled abdominal section featured various tattoos, including a bird upon his chest.

Sculpted: Alan's chiseled features were put on full display
Sculpted: Alan's chiseled features were put on full display

Sculpted: Alan's chiseled features were put on full display

When Alan wasn't spotted on set, Zooey was seen patiently standing beside her New Girl co-stars Jake Johnson and Max Greenfield, who both portray her roommates Nick Miller and Schmidt.

In contrast to her casual red top, Zooey looked chic as she stood in a lovely white dress with her brown hair loosely curled.

The 500 Days Of Summer actress appeared to be catching up with her co-star, who sported a maroon top.

Catching up: Zooey chatted with her co-star Jake Johnson, while actor Max Greenfield stood by

Catching up: Zooey chatted with her co-star Jake Johnson, while actor Max Greenfield stood by

All together now: The trio seemed to be waiting for their moment behind the camera

All together now: The trio seemed to be waiting for their moment behind the camera

Waiting around: The trio were joined by co-stars Damon Wayans Jr. and Lamorne Morris

Waiting around: The trio were joined by co-stars Damon Wayans Jr. and Lamorne Morris

New Girl co-stars Damon Wayans Jr. and Lamorne Morris were also seen standing beside Max.

The cast members appeared to be standing beside a billboard featuring Max as a model.

With a hand upon his chin, Max look handsome while clad in a white T-shirt.

Though Max's character isn't known for doing any modeling work, the billboard provides a humorous look at what may come for his character.

The fourth season of New Girl will hit Fox on September 16.

What's next? A billboard featuring Max's character hinted at what was in store for the roommate

What's next? A billboard featuring Max's character hinted at what was in store for the roommate

There she is! Actress Hannah Simone sported a long black jacket and hot pink top as she strolled beside Damon

There she is! Actress Hannah Simone sported a long black jacket and hot pink top as she strolled beside Damon

Looking lovely: Deschanel's lean legs were put on full display in her chic black and white dress as she stepped into the van

Looking lovely: Deschanel's lean legs were put on full display in her chic black and white dress as she stepped into the van

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