While he is known for playing charming nerd Wyatt Donnelly in the 1985 film Weird Science, Ilan Mitchell-Smith's career has taken a compelling turn. He began acting when he was a child, appearing as younger siblings or pre-teens who wish that they were cooler. After playing a young version of Timothy Hutton's character, Daniel Isaacson, in a flashback in the spy drama Daniel, he appeared in the 1984 TV movie How to Be a Perfect Person in Just Three Days as dorky Milo Crimpley, who takes a course on achieving flawlessness. Mitchell-Smith then played Eric Stoltz's Vietnam War-obsessed brother in The Wild Life, a teen comedy written by Cameron Crowe.

https://screenrant.com/ilan-mitchell-smith-career-since-weird-science/