User blog comment:Ffinfinity1/Possible Mass Effect 3 Information/@comment-76.100.135.143-20110421142734/@comment-737801-20110421143246

The only ones we have confirmed are Kaiden/Ashley, Liara, Garrus, and Jame Sanders as members of the squad. Others like Mordin have also been confirmed to return, provided they survived the suicide mission. And BioWare did state that if a squadmate survived the suicide mission, then they would return.