Feeling excited to know who will be the best man in Upcoming ceremony of Jennifer Aniston and Justin Theroux. Hold your breath and keep eyes on the news about famous Hollywood actress Jennifer Aniston. The famous actress wants her younger brother Alex to be a Theroux’s best man at her wedding ceremony. Her fiancé Justin Theroux agrees with Jennifer. Alex better known as AJ is an eccentric kind of person and good of heart. This very idea of having AJ as the best man of him on the wedding day will help Justin to get an anchor in the family.