The acting trio, as well as singer Joey McIntyre, took part in the 13.1-mile (21-kilometre) Rock 'n' Roll Pasadena run in aid of CureMito!, an organisation which raises awareness and funds for mitochondrial disease, a cell disorder which Wilson's daughter suffers from.
Raver, who completed the challenge in two hours and two minutes, says, "CureMito! was my biggest inspiration, which definitely is what got me out here, supporting Chandra and her daughter Sarina. I think when you have something that you are running for, it really keeps you going and you want to make a difference for those kids.
"CureMito! is an amazing organisation and I am so happy to be here in support of Chandra, she is such a team player on the set of Grey's. It was really emotional crossing the finish line."