Robert Downey JR & Wife Welcome Son Exton February 7, 2012 Robyn Good 4 Comments Robert Downey Jr.’s wife Susan Downey welcomed baby boy Exton at 7:24 a.m. on Tuesday. Exton weighed 7 lbs. 5 oz. at birth and measured 20 inches long. The news was confirmed by Downey’s rep, It’s their first child together. Downey has an older son, 18-year-old Indio, with ex-wife Deborah Falconer.