Melissa Joan Hart is paying tribute to her former Sabrina the Teenage Witch costar and buddy, Martin Mull.

Mull’s daughter, Maggie Mull, introduced the information of the actor’s demise in a touching Instagram submit on Friday, June 28. He was 80.

Hart, 48, later mirrored on her recollections with Mull by way of Instagram. He appeared in over 70 episodes of the Hart-led sitcom as Principal Willard Kraft from 1997 to 2000.

Wanting again at their off-camera bond, Hart posted a throwback picture of her and Mull posing in costume collectively on set.

“Relaxation in Peace my buddy. The unimaginable #MartinMull (Principal Kraft) has left us for his everlasting relaxation,” she started within the caption, including, “I’ve such fond recollections of working with him and being in awe of his enormous physique of labor which earlier than #SabrinaTheTeemageWitch included #Roseanne and #MrMom because the initiatives I knew him from.”

She saluted Mull for his appearances on “enormous exhibits in addition to options and animation” following his time on Sabrina.

Mull additionally appeared and starred in exhibits resembling Two and a Half Males, Arrested Improvement, The Ranch and The Cool Youngsters. He earned an Emmy nomination for his visitor function on Veep in 2016. His movie credit embody Clue, Far Out Man and Mrs. Doubtfire. Most lately, he had visitor appearances in Not Lifeless But, Grace and Frankie and The Afterparty.

In her Instagram tribute, Hart shared how Mull defined why he took so many roles.

“He as soon as instructed me that he takes each job he is supplied simply in case the practice involves an finish, which on this enterprise tends to halt rapidly,” wrote Hart. “He was an artist who favored to color and construct issues along with his palms, a musician and an exquisite man who i’m higher for realizing. ”

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The actress ended by stating that the world is healthier due to Mull.

“He shall be missed however this world has benefited from his being right here,” she wrote. “My deepest sympathies to his household and buddies. I’ll proceed to cherish the Martin Mull artwork work hanging in my house!”