The Dark Mirror Universe
In the mirror universe, William Thomas Riker was born to Kyle and Elizabeth "Betty" Riker in Valdez, Alaska on Earth on April 15, 2335. Kyle had not been prepared for a child and fled in fright. Betty Riker raised Riker on her own and made him a strong, headfast man. He joined Starfleet Academy in 2353 and was a member of Zeta Squadron. Will graduated the Academy with great honors. His first assignment was aboard the I.S.S. Potmekin under Captain Eric Pressman as an Ensign. He did many honarable things, such as rescuing 13,000 Terrans from a robotic rebellion, which rose him to the rank of Lieutenant Commander. Then, in 2359, he met Intendant Lwaxanza Troi's daughter, Deanna Troi. They became romatically involved, but he recieved word that he was to be first officer aboard the I.S.S. Hood under Captain Robert DeSoto and had to leave her. She always resented him for that. While serving on the Hood, he met and made a friend, Geordi LaForge. However, Geordi attempted to assiassnate Riker and take the position of first officer and failed. Riker resented him ever since. In 2364, Riker was sent to be first officer under Captain Jean-Luc Picard aboard the I.S.S. Enterprise ICC-1701 D. He became a well known first officer and led many missions for Picard. In 2371, the Enterprise D was destroyed by the Duras sisters during a mission to destroy the Veridian star. In 2373, he was brought back to be Picard's first officer aboard the I.S.S. Enterprise ICC-1701 E. After a failed Romulus destruction mission in 2379, Riker became Captain of the I.S.S. Titan.
The Crossover Universe
In this mirror universe, William Thomas Riker was born to Kyle and Elizabeth "Betty" Riker in Valdez, Alaska on Earth in April 15, 2335. Riker's family remained together and Riker followed in his father's footsteps as a political officer. He became a slave to the Klingon-Cardassian Alliance when they conquered Earth.