Taxi TV star Marilu Henner plays this unusual role in Unforgettable

The actress loaned these special insights as consultant.

How they got their start: Jill Hennessy

From body horror to crime-solving forensic pathologist.

The Good Wife, Crossing Jordan and more join Start TV's schedule in January

New series debut on New Year’s Day, Tuesday, January 1, 2019.

Jon Hamm explains his personal struggle with The Division's tensest episode

Here's how "Acts of Betrayal" became an "eye opener" for Jon Hamm.

Strong family vibes: Patricia Arquette's siblings appeared on Medium

There was even more family time on Medium than you thought!

How they got their start: Jamie Luner

From a ditzy TV twin to a stone-cold serious new profiler.

This is the closest Cold Case ever got to telling a ghost story

"Ghost of My Child" is one curious exception.

How they got their start: Nancy McKeon

Grab your tissues if Hallmark commercials make you cry.

The creator of The Closer initially tried to ban Brenda's pink trench coat

"I don’t want that coat to take on a life of its own."

For Halloween, Cold Case featured a copycat killer inspired by Michael Myers

Cold Case visited 1978 to get in on the teen slasher craze.

How they got their start: Kathryn Morris

From Cool as Ice to Cold Case.

TV's busiest director explains why Cold Case was his most fun challenge

Paris Barclay: "Half the show is unique every time."

Dr. Crippen on The Closer is named after an eerie killer whose murder case made history

The doctor became the first suspect caught by wireless technology.

Cold Case tackled wrongful convictions based on true crime, too

Before there was Making a Murderer, Cold Case reopened this case.

How they got their start: Kyra Sedgwick

From Another World to the Walk of Fame.

Turns out, there would be no Jon Hamm on Mad Men without The Division

Jon Hamm took a different approach to launch his career than most.

Kyra Sedgwick's daughter made her TV debut playing Brenda's niece on The Closer

One scene with Sosie Bacon was the hardest for Sedgwick in the entire series.

Diane Keaton's TV directorial debut was this 1990s after-school special with Patricia Arquette

Before Medium, Patricia Arquette was "The Girl with the Crazy Brother."

They revived Rod Serling to introduce the weirdest episode of Medium

This trippy episode came with 3-D glasses in your TV Guide.

The true crime story behind Cold Case’s “Lonely Hearts” episode

“The Lonely Heart Killers” met through a singles ad and died professing their love.

The creator of The Closer joins Patrick Stewart's new Star Trek series

This is Duff's second bout on the Starship Enterprise.

How they got their start: Ally Walker

From soap opera murder victim to the FBI's top profiler.

Everything The Division did differently from other cop shows

The New York Times in 2001: "It's a shrewd way to introduce a police show..."

It took 300 psychics and one intuitive wife to come up with the TV show Medium

The wife of Medium's series creator: "Oh my gosh, this is Patricia Arquette!"

When we meet Jon Hamm's character on The Division, he exhibits shades of Don Draper

It makes you wonder if Hamm was drawing from his earliest TV character to create his most famous one.

After Kyra Sedgwick got her Walk of Fame star, her next stop was Sesame Street

No one gets past The Closer, except for maybe Camouflage Carla.