Caleb Alexander grew up at the end of World War II in Harlem, New York. His favorite pass-time was reading comic books about the war-time heroes. Caleb's dad gave him a bike that he'd saved for for a long time. One day when Captain America
, Jim Hammond
, and Namor
were scheduled to appear in New York, Caleb rode his bike to go and see them. He followed Namor, who was flying in the air, on his bike and ended up falling over the pier into the ocean. Getting tangled in his bike, Caleb would have drown if not for Namor saving him. Caleb became fascinated with marine biology and traded his bike in for his first marine biology text, making his parents proud.
Over the following years, Caleb developed a theory about Namor's blood causing Namor's frequent rages and emotion imbalances. He worked on a blood-recirculater that would help Namor.
Caleb's wife died when their daughter, Carrie
, was three years old, and he never remarried. Caleb then suffered from two heart attacks, and had to give up deep-sea diving. Due to his failing health, Carrie came to work with her dad.
While sailing on his boat with Carrie, Caleb detected a fast-moving radar blip moving towards them and was shocked to see what looked like Namor shoot out of the water and followed him to a nearby island to investigate. They found Namor terrorizing the village of Chief Ve'ehalo and having hallucinations of his dead wives. Caleb realized that his blood-recycling may help Namor, and they convinced Namor to come back to their ship with them. After a treatment, Namor's head was clear and Caleb showed Namor the device. Grateful, Namor brought the Alexanders a large chest of jewels and asked them to help him run a business. The Alexanders used Namor's money to buy-out Parallel Conglomerate, and renamed it Oracle, Incorporated
Caleb showed interest in Carrie's struggle over Namor's romantic feelings for her, but Carrie asked Caleb to let her sort it out on her own. When the Griffin
burst through Oracle's window and snatched Carrie, Caleb prepared to defend her, but was knocked aside and then suffered a heart attack. Caleb crawled to Namorita
and she was able to get him medical attention.
Unconscious in the hospital, Caleb was visited by Carrie after she was rescued by Namor. With Carrie at his side, Caleb recovered. Namor decided to go public as a result of his battle.
Businessman J.Q. Stamp kidnapped Caleb and Carrie and threatened their lives in order to force Namor into signing Oracle, Inc. over to him. Namor did so, but then had Namorita dress up as Tigress Shark to trick Stamp into thinking he would have to face all of Namor's enemies now that he owned Oracle. Stamp gave Oracle back to Namor to save himself. When he learned that he had been tricked, he told to his men to kill Caleb and Carrie, but Namor had already set them free.
Caleb and Carrie went on an ocean cruise to give Caleb a chance to recuperate from his heart attack. After a few weeks, Caleb grew antsy to get home to help Namor with the legal challenges he was having. Caleb noticed the boat changing course, then Carrie noticed that Namorita was coming to join them, swimming with a group of dolphins. Captain O'Malley and the Skipper asked Namorita to investigate. Soon, pollution called Sluj
swarmed over the boat and absorbed all the passengers. Carrie and Caleb were put inside life support bubbles inside of Sluj, to be used for a food source later.
After being freed from Sluj, Carrie admitted to Caleb and Namorita that she had realized that she really did love Namor, and tried to convince them that Phoebe Marrs
had ulterior motives for Namor. Carrie finally convinced Namorita to go check on Namor.
Caleb Alexander was called on to testify at Namor's trial, where Namor was being charged for all his battles against the surface world. After Caleb was questioned by Mr. Klein, Namor's lawyer, about Namor's oxygen imbalance, the jury found Namor guilty but insane. Namor was given one hundred years of probation.
While Namor and Carrie were off in the Savage Land
, Namor asked Desmond Marrs
to keep an eye on Oracle. Caleb arrived at Oracle and heard from Miss O'Connor that Desmond was selling off large shares of Oracle's holdings. He rushed in to confront Desmond, who said he had no intention of stopping. Caleb was going to report Desmond, but Desmond smashed a vase over Caleb's head and then beat the unconscious old man repeatedly.
After two hours, Miss O'Connor asked Spitfire to investigate, and they found Caleb unconscious. After six months, Caleb was still on life support and didn't seem to be recovering, and soon after, passed away.