 He appeared in the 1987 film "Can't Buy Me Love", playing Patrick Dempsey's character's little brother, Chuckie Miller.He starred in Woody Allen's "Radio Days" (1987) as Joe (a 1930s–1940s boy based on Allen) and appeared in "Big Business" (1988) and, in the same year, "My Stepmother Is an Alien", which also starred "Buffy the Vampire Slayer" co-star Alyson Hannigan.In 1984, Green portrayed Carl "Alfalfa" Switzer in the Jell-O Gelatin Pops commercials featuring "The Little Rascals".