15 Oppenheimer Actors In Their First Big Acting Roles Vs. Now (5 of 8)

Robert Downey Jr.

Robert Downey Jr. as Lewis Strauss

First role – Pound (1970)

How does a 5-year-old get into a movie without having to audition? It certainly helps to be the son of the director, which is how the Ironman star first got introduced to the world. In the film, Downey played the role of a puppy, as the movie featured a unique concept where actors portrayed dogs in a pound who could communicate with each other.

Josh Hartnett

Josh Hartnett as Ernest Lawrence

First role – Halloween H20: 20 Years Later (1998)

Hartnett played John, Laurie’s son. Laurie, using the name Keri, was protective and didn’t let John go on a school trip. Because of this, John faced Myers on Halloween. Despite being stabbed by Myers, both John and his girlfriend Molly survived the evening.