Bob Odenkirk also offered moving words about the late actor.

“I am very saddened today to learn of a friend’s passing,” Cranston wrote onInstagramon Friday.

“Mark Margolis was a really good actor and a lovely human being.

Bryan Cranston, Mark-Margolis

Bryan Cranston; Mark Margolis.Lewis Jacobs/AMC/Courtesy Everett; Ursula Coyote/AMC/Courtesy Everett

His quiet energy belied his mischievous nature and curious mind… And he loved sharing a good joke.

I miss him already.

Rest now, Mark, and thank you for your friendship and your exceptional body of work.”

Margolis died Thursday in New York City’s Mt.