Selma Blair has been a face of hope and inspiration for the multiple sclerosis community since her diagnosis in Oct. 2018; but to her 10-year-old son Arthur, she's just Mommy. "He says, 'Mommy's not sick. Mommy's brave," she revealed in the Aug. 2019 cover story for People. From witnessing his mom fall down the stairs to seeing her exhausted or sick, the After actress explains her son has experienced a lot more than other kids his age. "He's had to endure a lot; he's seen a lot," she said. Though, Blair has always kept it very real with Arthur, even when he asked if her diagnosis meant she would die. "I always want him to feel safe, never responsible for me," she told Good Morning America's Robin Roberts. Read more about Arthur Saint Bleick ahead. He's definitely a special little dude.