In the television adaption of the series, Henry isn't a writer, but a graphic novel artist, and he assists Vicki in her various supernatural requests. One difference from the book version of the series is that Henry was originally 5'6", being about four inches shorter than Vicki; in Blood Ties, Vicki is 5'6', Henry is 5'10", and Mike is 6'2" (essentially, Henry and Vicki have exchanged heights). In addition, the book describes Henry as having goldish-red hair, while the TV series depicts him with brown hair. Another difference is Henry's bisexual nature; though it's expressed somewhat periodically in the books, the TV series makes few, if any, references, with Henry's depicted romantic liaisons all being female. Finally, Tony Foster, Vicki's assistant in the books, has been replaced by Coreen Fennel, a client with ties to the Goth community who becomes Vicki's assistant after the second episode. Unlike Tony, with whom Henry is involved, Henry does not feed from Coreen (although he does feed from both Vicki and Mike, even if Mike was only because he was half-mad with hunger and pain), perhaps in part because of her fascination with magic, which he abhors due to his religious upbringing (although he still possesses a fair knowledge of various types of magic, allowing him to perform basic tracking spells and identify certain charms, even if outside expertise is required in more complex cases).