William Thomas Riker is the first officer on the U.S.S. Enterprise-D. An unorthodox improvisational, and accomplished tactician Riker is notable for his enthusiastic loyalty and also for his willingness to disobey the chain of command when warranted. Called Number One by Picard, he enjoys the captain's full trust, and is well liked among the crew. Despite several offers to helm his own ship, Riker chose to remain first officer on the Enterprise until accepting command of the U.S.S. Titan in 2379. That same year, he marries Deanna Troi.
