Hank: If I was a better man, maybe I could have figured something else out. But when I saw my son hitting Seeley...beating that little kid...that was it! I said, "Get out! You don't deserve to be a father! Get out!!" He never came back. So I...I was left with the two boys.
Hank raised both Booth brothers after he caught his son beating Seeley. In "The Foot in the Foreclosure", Hank confides this secret to Seeley's work partner, Temperance Brennan, telling her that she should tell Seeley this and to hold him when she does. In the same episode, Hank stays at Seeley's apartment after getting into trouble with the nursing staff at the home he was staying at due to a heart condition. During his stay, he bonds with Brennan and Lance Sweets, however he realizes he needs to go back after he nearly burns down Seeley's apartment while making dinner for him.
In The Male in the Mail, Hank returns and tells Booth of his father's liver failure and subsequent death. Hank tries to get Booth to realize that although his father was an abusive alcoholic, he was his father nonetheless. He tells Booth to love Brennan and their unborn daughter and gives him a box from his son, which Booth at first refuses to open, but which is later revealed to contain reminders of the good times he had spent with his father.
In The Woman in White, he appears for Booth's wedding to Brennan. Hank is happy for his grandson and is happy to see him get married to Brennan.
In The New Tricks in the Old Dogs, Booth mentioned that Hank served with the 720 MP Battalion in Vietnam in the 50's when they were first interrogating Red Hudmore.
- Booth mentioned that Hank is a smoker. He wanted to smoke a cigar in his room, which led him to punching a male nurse.
- His catchphrase appears to be "I don't think so."
- Hank had triple bypass surgery three months prior to the events in The Foot in the Foreclosure.
- Hank learned to make grilled cheese during the Battle of Inchon since American Cheese reminded them of home. It reveals that he fought in the Korean War.
- He thought that Rebecca was a waste of time during the time they were dating.
- Hank told Booth that his wife, Booth's grandmother, was slightly overweight. In The New Tricks in the Old Dogs, her name is revealed to be Alice.
- With the death of Ralph Waite, the character never made any further appearances after The Woman in White.