Robin Williams' daughters in the hit movie "Mrs. Doubtfire" have joined thousands in paying tribute to the acclaimed actor.

Mara Wilson and Lisa Jakub both poured out their feelings about Williams, whom they considered as their champion, and how his unexpected passing had affected them.

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Mara, who played the youngest daughter of Williams in the comedy movie, wrote that when she heard Williams had died, she was shocked, angry, confused, regretful and sad altogether.

She said all she wanted to do was talk to her friends and family and cry it out. Although she had not talked to Williams for years, Mara admitted but Williams had a great impact on her life. She described Williams as a warm and talented person and was always a joy to have around. She likened the situation to having her favorite teacher die.

Lisa, who played the eldest daughter of Williams in "Mrs. Doubtfire," wrote in her blog that Williams had stood up for her when she was kicked out of high school for being away for five months while shooting the movie.

Liza was 14 when the movie was being made. She remembered feeling dejected over the school's decision to terminate her education, and how Williams took notice of her devastation when she showed up on the set.

The next day, Williams handed her a letter to give to her school. In the letter, Williams had vouched for Liza's good character, her professionalism, and explained that she was trying to continue her education while pursuing her acting career. Williams had requested that she be allowed to continue her schooling.

Liza ended her blog saying she realized how Williams had her back, and that he taught her to stand up for the things that mattered the most. That personal realization prodded her to call on everyone to reach out to loved ones who are suffering from depression.

A fitting tribute, indeed, to "Mrs. Doubtfire" who once said "Live life with balls. Expect the unexpected".

TagsRobin Williams, Mrs. Doubtfire, Mara Wilson, Lisa Jakub