Robert Downey Jr. surprised Ironheart star Dominique Thorne with a heartwarming message from the set of Avengers: Doomsday. Read on for more.

Robert Downey, Jr. gave stars of the upcoming "Ironheart" a wonderful, sweet surprise as they were being interviewed on "Good Morning America". The future star of "Avengers: Doomsday" recorded a message for Dominique Thorne and Anthony Ramos,

"Ms. Thorne, I couldn't be happier than to be seeing you bring Riri Williams to life," Downey Jr. said in the pre-recorded message, before turning his focus to Ramos' upcoming rol