Ahead, the cast ofABC’sThe Rookieand executive producer Alexi Hawley introduce the characters.

“John Nolan’s strength is that he has lived for [40-plus] years,” Hawley says.

“He’s a rookie police officer with an empathy 25-year-olds don’t have.”

TITUS MAKIN, MELISSA O’NEIL, ERIC WINTER, NATHAN FILLION, AFTON WILLIAMSON, ALYSSA DIAZ, MERCEDES MASON, RICHARD T. JONES

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Luckily, Lucy’s a quick learner, and Tim’s no villain.

Think of him as a drill sergeant in the military….

He comes from a mentality of, I’d rather break you and then teach you.

NATHAN FILLION

Eric McCandless/ABC

If you’re breakable, then you shouldn’t be here.

That said, the toughness exists for a reason.

“You’ll get a glimpse of who the guy is behind all the bravado,” Winter teases.

MELISSA O’NEIL

Eric McCandless/ABC

Partnered with Officer Nolan, Bishop tries her best to ensure he’s “a sponge.”

“He’s a hard-nosed, old-school punch in of cop, who cares deeply for his people.

“He fears that that could be a bad element for his particular squad.”

TITUS MAKIN

Tony Rivetti/ABC

Still, don’t expect Grey to simply be the villain of Nolan’s story.

“Everything he does, he does for his people’s safety and for their betterment.”

“The other cops don’t always look outside the box.”

ALYSSA DIAZ

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As for Andersen herself?

“She’s strong and relentless, and she’s not going to let anyone push her over.”

Especially not those challenging her hires.

ERIC WINTER

Tony Rivetti/ABC

The Rookiepremieres Tuesday, Oct. 16, at 10 p.m.

AFTON WILLIAMSON

Tony Rivetti/ABC

RICHARD T. JONES

Tony Rivetti/ABC

MERCEDES MASON

Tony Rivetti/ABC