ForBrian Austin Green, his friend and castmateLuke Perryis gone but never forgotten.

“There was a part of me that couldn’t really process that that was real.

I texted him the day after he passed,” said Green, 50.

Luke Perry and Brian Austin Green

Luke Perry and Brian Austin Green.Ron Galella/Ron Galella Collection via Getty Images

He’s hiding somewhere.

Or something’s happened.'

That’s just a part of life," he said.

“But nobody ever expected that we would lose someone so early.

And I… honestly never expected that it would be Luke.

To me, in my mind, Luke was the strongest of everyone.

He was the constant guy, he was exactly who he was at all times.”

Green also revealed that he thinks about Perry with near-daily frequency.

“Luke is still a big part of my life,” he said.

“That is a legacy,” Green said.

“It’s not the stuff.

It’s not the shows you did.

It’s the connections that you made with people.

It’s the lasting imprint that you left on your friends, on your family, on your children.

It’s the stories that people share about you afterwards.”

Watch the video above for more from Green.

The full episode premieres Feb. 4.