Clive Bixby was Phil's alter ego he created together with Claire's Juliana for their Valentine's Day dates.
Introduced in "My Funky Valentine", Phil described Clive as a business man who designed high-end electro-acoustic transducers. He had been featured frequently since, especially during the Valentine's Day episodes. Clive was shown to have the tendency to accidentally make funny innuendos while trying to talk smoothly.
In the same episode, Clive and Julianna met at a bar to "pick her up". She went to the restroom and came back wearing her coat with no clothes underneath. As they prepared to go upstairs, she got her coat stuck in the escalator, which she could not take off. They quickly converted back to Phil and Claire.
In his second appearance ("Bixby's Back"), Phil and Claire decided to have a small dinner for Valentine's Day in order to avoid the disastrous results of the previous year's events. After having dinner with the elderly and realizing she was not ready to give up the excitement yet, Claire decided to bring back their characters from said year. Juliana called Clive to ditch his wife and met her at their hotel. At the bar, Juliana gave Clive the key to her room. While watching her walk away, Clive took the wrong room key belonging to an older woman who was arranging her purse. He entered the wrong room, undressed, scattered flowers all over the room, and opened a bottle of champagne. The older woman then walked in after coming back from the bar. They quickly converted back to Phil and Claire after the former almost got arrested.
He also made a small appearance in "Door to Door". Phil and Luke were shooting a home video and Phil decided to let Clive take the role. In the video, Clive stated that he could "do anything in two minutes".
In "Heart Broken", Clive and Juliana celebrated Valentine's Day a day early, but their date is cut short when Claire fainted due to her condition, later revealed to be Wolff-Parkinson-White syndrome.
In "Valentine's Day 4: Twisted Sister", Phil revealed that his Clive Bixby suit was ready to be worn, but Claire decided that she just wanted something low-key.
Clive returned in "Do You Believe in Magic".