also known as David the Scientist Guy, was the first serious love interest of Phoebe Buffay
Appearances
Friends
Guest cast, played by Hank Azaria
- Episode 1x10: The One With the Monkey (Dec 15, 1994)
- Episode 7x11: The One With All the Cheesecakes (Jan 4, 2001)
- Episode 9x06: The One With the Male Nanny (Nov 7, 2002)
- Episode 9x22: The One With the Donor (May 8, 2003)
- Episode 9x23: The One in Barbados, Part 1 (May 15, 2003)