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Many of the \"Sin City\" actress' friends rallied behind her dad and cheered him on in the comments section.

Alba's \"Fantastic Four\" co-star Kerry Washington remarked, \"This is ADORABLE!!! Sending you and your dad hugs and prayers!!!\" Her \"L.A.'s Finest\" co-star Gabrielle Union expressed support by tagging Mark and telling him, \"You got this.\"

Others, such as Vanessa Bryant, January Jones and Mindy Kaling further encouraged Mark by spamming heart emojis.

Alba's father's real estate company, The Alba Team, spoke further of his diagnosis in a separate Instagram post and shared a video in which he shows off his surgery scar.

View this post on Instagram

A post shared by The Alba Team 🏠 Real Estate (@thealbateam)

\"It’s about to get real personal,\" the statement began, revealing that several team members recently battled COVID-19. \"Mark in particular has battled Covid-19 and thyroid cancer.\"

\"He’s positive and feeling great right now. It takes a lot to keep Mark down,\" the team promised.

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