AceShowbiz - Bryan Cranston has offered his final tribute to Mark Margolis. In a social media post, the Walter White depicter on the AMC crime drama series "Breaking Bad" said he's "saddened" by his co-star's death.

Making use of Instagram on Friday, August 4, the 67-year-old shared pictures of the late Mark. He began his caption, "I am very saddened today to learn of a friend's passing. Mark Margolis was a really good actor and a lovely human being."

"Fun and engaging off the set, and (in the case of Breaking Bad and Your Honor) intimidating and frightening on set," he added. "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," Bryan concluded. He also explained that the first picture was Mark on "Your Honor", while the second one was him on "Breaking Bad".

Mark, who was famous for his role as the wheelchair-bound, bell-ringing drug kingpin Hector "Tio" Salamanca on "Breaking Bad", passed away at the age of 83 on August 3. He died at Mount Sinai Hospital in New York City after battling a short illness, his son Morgan Margolis said.

Along with his son Morgan - who is CEO of Knitting Factory Entertainment - Mark is survived by his wife, Jacqueline, to whom he was married for 61 years and three grandchildren.

Movies he is credited with include "Ace Ventura: Pet Detective" and "My Big Fat Greek Wedding 2". He was also a notable stage actor and appeared as Gus in Tony Kushner's "The Intelligent Homosexual's Guide to Capitalism and Socialism with a Key to the Scriptures" in 2014.