Can't get enough of NBC's new ensemble dramedy This Is Us? You're not alone. The talented cast keeps viewers tuning in every week. If you think some of them look familiar, here's what the cast was up to before joining the new fall TV hit ...

This Is Us is the latest credit for Moore, who is certainly not new to Hollywood.

Moore's career began in music. Her debut single "Candy" climbed the Billboard Hot 100 chart in 1999. She followed up with the catchy song "I Wanna Be With You" in 2000.

The actress has voiced Rapunzel in Disney's Tangled, starred in films like Saved! and Because I Said So. She has even starred in a big screen Nicholas Sparks adaptation, as Jamie in A Walk to Remember.

You know Jones as Randall's biological father, William, on This Is Us.

Jones played Romero, a member of the "fsociety," on Mr. Robot. He has also acted in He Got Game, Half Nelson, and Marvel's Luke Cage.

We know you were wondering: what is Sullivan up to when he's not portraying Kate's boyfriend Toby?

From Stranger Things to The Knick, Sullivan's no stranger to television. He'll join the Marvel universe in 2017 as Taserface in Guardians of the Galaxy Vol. 2.

This Is Us may be her biggest role, but do you remember which franchise series Metz appeared on before this?

The actress has had small roles in Entourage and My Name Is Earl. You may recognize her from her work as Barbara and Ima Wiggles in American Horror Story: Freak Show.

Sterling K. Brown is a television veteran, earning numerous credits before joining the This Is Us cast.

You may recognize Brown from Supernatural, Army Wives, or Person of Interest. In 2016, he won an Emmy for his role as Christopher Darden in The People v. O.J. Simpson: American Crime Story.

Did you know Justin Hartley is a former soap star?

Hartley knows his way around Hollywood when it comes to soaps and superheroes. He has had recurring roles on Passions, Smallville, and The Young and the Restless.

Before This Is Us, Watson was most recognized for her work on an award-winning FX series ...

The actress has appeared on numerous TV series, including NCIS and The Blacklist. She has also had a recurring role on Louie as the titular character's ex-wife Janet.

This Is Us is not Milo Ventimiglia's first NBC series.

Ventimiglia's big break came when he joined the cast of NBC's Heroes in 2006. Ventimiglia played Peter Petrelli, a hospice nurse turned paramedic with the ability to mimic the abilities and powers of other people.

Before his Heroes fame, the actor appeared in the WB series Gilmore Girls, The Bedford Diaries, NBC's American Dreams, and played Rocky Balboa's son in the 2006 film Rocky Balboa.