The fellow actor was photographed exiting a Starbucks in Los Angeles on the morning of the Aug. 20 event, which took place in Georgia. When asked by a celebrity photographer why he was not at his brother's wedding, Casey asked for the question to be repeated before muttering something that sounded like, "I have other things," and entering an SUV, as seen in a video posted by Page Six and TMZ. Casey did not confirm his remarks or elaborate when questioned again and instead shut the car door.
E! News has reached out to Casey's rep for comment and has not heard back.
A source told People that Casey did not attend the wedding celebration because of "family, parental obligations at home." The actor shares sons Indiana, 18, and Atticus, 14, with ex-wife Summer Phoenix.
Casey also avoided a question about attending Ben and Jennifer's wedding while he out to dinner in Los Angeles two days prior with girlfriend Caylee Cowan, as seen in another video posted by TMZ.
In addition to Casey, who starred with Ben in films such as Good Will Hunting and appeared in his movie Gone Baby Gone, neither of the couple's exes were spotted at the event. Per TMZ, hours before the wedding, Garner was photographed at a Sam's Club in South Charleston, West Virginia, near where she grew up.