Alex

Alex Richards is the charismatic Captain of his ship, the USS Silencer, and the eventual husband of Jhaldis.

To him, Jhaldis, Tyler, and Trixie are his family. When Mark is assigned to be the new pilot of the Silencer, Alex welcomes him as a vital part of his crew.

Personality
Alex is strong, trustworthy, and kind, caring deeply for his crewmembers and treating them as his family. He admires and respects Ambassador Melaia and Ambassador Ben, and is willing to give his life for them.

Alex loves Jhaldis immensely. After having lost their relationships years before events of the first Galaxy, Alex never let go of his feelings for her. Much relieved, they have rekindled their relationship, and it is far stronger than ever before.

Galaxy
Alex is first met in the bar where Ambassador Melaia meets Jhaldis. They decide to use his ship to fly to Orchastrainia. Alex has known Jhaldis in the past, and this is evident by their conversations in the bar and shop hangar. During the course of the movie, Alex develops romantic feelings for Jhaldis, and cares for her deeply.

Galaxy 2
Alex continues to command the USS Silencer with his crew, and continues his relationship with Jhaldis. He and his team are tasked by the Admiral to infiltrate the Third Galaxy and find information about it. As the movie progresses, Alex's task is altered to rescue the President, who is found to be taken hostage by the aliens of the Third Galaxy. Upon return to the Solar Galaxy, the USS Silencer destroys one of the Third Galaxy's two main motherships.

At the end of Galaxy 2, Alex proposes to Jhaldis, who eagerly accepts. A photo of their wedding is shown during the end credits of Galaxy 4.

Galaxy 7
Alex and his crew make a brief cameo in Galaxy 7, where it is revealed that he and the crew of the USS Silencer are assisting the Solar Galaxy in their battle against the Fourth Galaxy. At the end of Galaxy 7, Alex takes Commander Kyle and his team to Orchastrainia.