Jason Bateman, who played Michael, posted onTwitter, “R.I.P., Jessica Walter.

What an incredible career, filled with amazing performances.

I will forever remember my time with her, watching her bring Lucille Bluth to life.

Jessica Walter smiling at event

She was one of a kind.

All my love and thoughts to her family.”

Rest In Peace, Mama Bluth."

Cast of Arrested Development posing at event

Will Arnett (Gob)eulogized, “Jessica Walter was a deeply talented person.

We first met on a pilot in ‘96 and I was instantly blown away.

I’m fortunate to have had a front row seat to her brilliance for 25 years.

My thoughts are with her daughter, Brooke, and grandson, Micah, today.

You’ll be missed.”

I consider myself privileged and very lucky to have been able to work with her.

Lucille Bluth is one of TV’s greatest characters."

Recurring guest stars were heartbroken, too.

It was an honor to watch her comedy explode from the very first row."

RIP, Ms. Walter.

Hetweeted, “What a brilliant, funny, intelligent, and strong woman.