Question: Who played Dr. David Cameron on a show developed and written by Ron Cowen and Daniel Lipman?

Context articles: List of Queer as Folk episodes
Queer as Folk (U.S. TV series)
Sisters (TV series)
Daniel Lipman
Leap Years
Brian Kinney
Chris Potter (actor)
An Early Frost
Betty Blue Eyes
Cowlip Productions

"Queer as Folk" is a drama television series.
 An American–Canadian co-production.
 The series ran between December 2000 and August 2005 and was produced for Showtime and Showcase by Cowlip Productions, Tony Jonas Productions, Temple Street Productions and Showtime Networks in association with Crowe Entertainment.
 It was developed and written by Ron Cowen and Daniel Lipman, who were the showrunners, and also the executive producers along with Tony Jonas, former President of Warner Bros.
 Television.
Queer as Folk is an American-Canadian drama television series.
 The series ran between December 3, 2000 to August 7, 2005 and was produced for Showtime and Showcase by Cowlip Productions, Tony Jonas Productions, Temple Street Productions and Showtime Networks in association with Crowe Entertainment.
 It was developed and written by Ron Cowen and Daniel Lipman, who were the showrunners, and also the executive producers along with Tony Jonas, former President of Warner Bros.
 Television.
Sisters is an American drama series which aired on NBC for six seasons from May 11, 1991 to May 4, 1996.
 The series was created by Ron Cowen and Daniel Lipman, who were also the executive producers and showrunners.
 The show debuted on May 11, 1991 for a seven-episode test run and was subsequently renewed for the 1991 fall schedule.
 "Sisters" was one of the first 'demographic' hits because of its strong female viewership.
Daniel Lipman is a writer and producer from Baltimore, Maryland.
 His best-known work to date is writing for and producing the hit American television shows "Queer as Folk" and "Sisters".
 He is a partner with Ron Cowen in the television production company Cowlip Productions.
Leap Years is a 2001 drama television series that aired on the Showtime cable network.
 The show was created by Ron Cowen and Daniel Lipman, who had created the American version of the series "Queer as Folk".
 It followed a group of friends in New York City.
 Set in the main in 2001, the show was uniquely structured as a series of flashbacks to 1993 and flashforwards to the then-near future 2008.
Brian A. Kinney is a fictional character from the American/Canadian Showtime television series "Queer as Folk", a drama about the lives of a group of gay men and women living in Pittsburgh, Pennsylvania.
 The character was created by Ron Cowen and Daniel Lipman, who developed, wrote and executive-produced the series, and was portrayed by American actor Gale Harold during the show's five-year run.
Christopher Jay "Chris" Potter (born August 23, 1960) is a Canadian actor, musician, and pitchman.
 He is primarily known for his roles on soap operas and prime-time television.
 Potter is known for his roles as Peter Caine, the son of Kwai Chang Caine (played by David Carradine) on the 1990s crime drama "", Dr. David Cameron on the first season of "Queer as Folk", as the voice of Gambit in the animated X-Men series, and for his recurring role as con-artist Evan Owen on "The Young and the Restless".
 He plays Tim Fleming on the drama "Heartland".
An Early Frost is a 1985 American made-for-television drama film and the first major film, made for television or feature films, to deal with the topic of AIDS.
 It was first broadcast on the NBC television network on November 11, 1985.
 It was directed by John Erman, from the Emmy Award-winning teleplay written by Ron Cowen and Daniel Lipman, (story by Sherman Yellen).
 Aidan Quinn starred as Michael Pierson, a Chicago attorney who goes home to break the news – that he is homosexual and has AIDS – to his parents, played by Ben Gazzara and Gena Rowlands.
Betty Blue Eyes is a 2011 stage musical comedy based on the 1984 film "A Private Function", and features music by George Stiles, with lyrics by Anthony Drewe.
 The book was written for the stage by Ron Cowen and Daniel Lipman, adapted from Alan Bennett's original screenplay.
Cowlip Productions is a television production company owned by Ron Cowen and Daniel Lipman.