Frank Riker was a Starfleet officer from the 27th century. (Star Trek: Mirror Wars) Frank Riker went into Starfleet Academy at the age of 21. Graduated top of his class. Trained for command and got the duty of tactical officer aboard the USS Striker five months after graduation. Served with his future wife on the Striker and married in the year 2574. Was promoted to lieutenant. With his wife dead, Riker was kept out of depression with Deker's help.