Jim Clancy is Melinda's husband. The character is portrayed by David Conrad. As a star of the series, he has appeared in all the episodes.
Jim and Melinda get married and move in at the start of the first season. Jim was a firefighter, and the two met when he rescued her from her burning apartment complex. Jim knew of Melinda's unique ability to communicate with ghosts at the start of the series; he helped her as much as he could, though Melinda's good friend Andrea Marino provided most of the aid until her death at the end of the first season.
It was revealed in the pilot episode that Jim witnessed his older brother, Dan, die when they were young. After having seen Dan die and being unable to save him, Jim decides to become a paramedic. Dan attended Jim and Melinda's wedding as a ghost and conversed with Melinda during the reception.
After Melinda's near death experience during the season two finale, "The Gathering", Jim becomes worried about what else could happen to Melinda because of the ghosts. Jim also helps try to find information about Melinda's father, Tom Gordon, who might or might not be dead, as well as try to find any information about Melinda's brother.
In "Haunted Hero", Jim and Melinda welcome a returning soldier from Iraq, Matt, back to Grandview. When Matt becomes paranoid due to being haunted by his dead comrades and post-traumatic stress disorder, Jim confronts Matt in the town square and talks Matt out of trying to kill himself. Jim delivered some of his convincing argument with Matt's gun pointed at him.
In "Weight Of What Was", Gabriel returns to Grandview and Jim warns him away, though not before Gabriel reveals that he is Melinda's half-brother. Jim, Rick, and Delia go in search of Melinda, who is trapped in old Grandview, which is buried under present day Grandview. Tessa, the ghost of Melinda's maternal ancestor who was also a Ghost Whisperer, helps them find Melinda by communicating with Delia and Jim.
Jim also begins thinking of moving out of Grandview while attending Medical School; at first, Melinda does not like the idea, but she later agrees to it.
In "Deadbeat Dads", Jim admits that he would like to have children someday; Jim and Melinda have recently tried for a baby with no success.
Near the end of "Imaginary Friends and Enemies," Jim is shot in the shoulder and is rushed to the hospital. Relieved to hear that his surgery went well, Melinda is taken to his room and asks if she could stay with him until he wakes up. It is implied that she waits several hours, and she eventually falls asleep next to him. She wakes up to find Jim next to her, and believing him to be awake, she tells him she loves him. When Jim tells her softly that he suffered an embolism, she tries to get a doctor, but he tells her not to and says that he wants her to remember him like he is appearing to her. This causes Melinda to realize that Jim is appearing to her as a ghost; his body then flatlines in the background, and his ghost disappears. His death was foreshadowed in the season premiere, when a ghost warned Melinda that death might rub off on those she loves.
Soon after his death, Jim entered the body of a man named Sam Lucas. Melinda finds out she is pregnant and the baby is his. Later Melinda begins to worry about their unborn baby. She began to have nightmares and visions that the baby was in danger. She was sure by the things she was being told the baby was a girl after Melinda runs into the faceless child again, who puts her hand on Melinda's tummy and says, "You can't save her. You can't." and Carl telling Melinda that her future is in Melinda's hands. Jim reveals to Melinda that he had seen her chart accidentally and knew it was boy, although he knew they agreed not to find out, but he told her to ease her mind, so she’d see her visions and dreams were wrong. Jim and Melinda marry again at the same place they met - in front of witnesses, Eli James (best man) and Delia Banks (matron of honor), and a full gathering of spirits.
In Season 5, Melinda believes her due to date is the exact date in the book, which arises doubts from Jim and the rest of the characters (Delia, Ned, and Eli), Melinda finally needs an emergency C-Section. When the baby suddenly goes into fetal distress in the operating room, the season’s first ghosts appear to Melinda. First the watcher, that warned Melinda of her child’s power and the danger he may come into, stops time to tell her that Fate and Free Will will work together to decide whether or not the baby will live. The second ghost comes in the form of a young woman in a white gown, she quickly disappears and time restarts. While the baby isn’t breathing at first, he suddenly recovers to full health. Later in recovery, Melinda tells Jim they’ll name the baby Aiden Lucas, in honour of Jim’s father, and Sam Lucas. The celebration of Aiden's upcoming fifth birthday. Jim is now a resident at Rockland Memorial Teaching Hospital, as Jim, and he takes the name Jim as his middle name. Ned is also in college, taking classes with Eli, whilst Delia has become a big Real Estate salesperson. There was always a problem every year on Aiden's birthday. He would become strangely sick or Melinda walks through a plate glass window, for example. Every year a woman would visit Aiden, and sing him happy birthday. The woman, Amber, had died in child birth the night Melinda gave birth to Aiden. Amber was convinced her son’s spirit jumped into Aiden, as he had stopped breathing shortly after he was born. Later on in the episode, it is revealed that the son was actually adopted by the birth father and his wife.
Melinda helps Amber into light, and learns from the watcher that Aiden is an empath. He feels and takes on emotions of those around him. This is revealed as the reason why each year that Amber would show up he gets sick. Melinda also finds out that she shares a psychic link with Aiden, which allows them to communicate with one another, though he doesn’t fully understand it. Melinda and Jim decide to not tell Aiden, because they want him to have a normal life, with his own dreams.
