Question: Bailey Chase starred as what character in a WB Television Network show that reached between four and six million viewers?

Context paragraphs:
The WB: The WB Television Network (commonly shortened to The WB and short for Warner Bros.) was an American television network that was first launched on broadcast television on January 11, 1995, as a joint venture between the Warner Bros.  Entertainment division of Time Warner and the Tribune Broadcasting subsidiary of the Tribune Company, with the former acting as controlling partner.  The network principally aired programs targeting teenagers and young adults between the ages of 13 and 34, with the exception of its weekday daytime and Saturday morning program block, Kids' WB, which was geared toward children ages 7 to 12.

Michigan J. Frog: Michigan J. Frog is an animated cartoon character who debuted in the Merrie Melodies cartoon "One Froggy Evening" (December 31, 1955), written by Michael Maltese and directed by Chuck Jones.  In this cartoon, partly inspired by a 1944 Cary Grant film entitled "Once Upon a Time", Michigan is a male frog who wears a top hat, carries a cane, sings pop music, ragtime, Tin Pan Alley hits, and other songs from the late 19th and early 20th century while dancing and performing acrobatics in the style of early 20th century vaudeville.  He appeared in a later cartoon titled "Another Froggy Evening" which was released on October 6, 1995.  He was also a former mascot of The WB Television Network from that year until 2005, and after "The Night of Favorites and Farewells", he was shown as the final image of a white silhouette bowing down to viewers, bringing up The CW Television Network.

Kids' WB: Kids' WB was an American children's programming block that originally aired on The WB Television Network from September 9, 1995 to September 16, 2006.  On September 23, 2006, the block moved to The CW, which was created by CBS Corporation and Time Warner as a replacement for both The WB and UPN.  The Kids' WB television block was discontinued on May 17, 2008, with its Saturday morning programming slot being sold to 4Kids Entertainment and replaced by successor block The CW4Kids.

Christy Jenkins: Christy Jenkins is a fictional character from the American television supernatural drama "Charmed", which aired on The WB Television Network (The WB) from 1998 to 2006.  The character was created by executive producer Brad Kern and was portrayed by actress Marnette Patterson.  Developed in response to the WB's request for a new character, Christy was originally planned to expand the show in a new direction for a possible ninth season or spin-off.  It was later confirmed that all future plans for the show were cancelled following the WB's closure to launch The CW.

Bailey Chase: Bailey Chase (born Bailey Chase Luetgert; May 1, 1972) is an American stage and television actor known for his role as Butch Ada in the television series "Saving Grace", starring as Graham Miller in "Buffy the Vampire Slayer", Christopher "Chris" Robert Hughes (from 2003–2005) in the soap opera "As the World Turns" , Beckett 'Becks' Scott on "Ugly Betty," Sean Everett on "Damages" and as Deputy Branch Connally in A&E's crime thriller "Longmire".  Bailey Chase has also starred in the thriller "Summoned" alongside Cuba Gooding, Jr.; "Tao of Surfing"; "Sex, Death, & Bowling"; and "No Beast So Fierce".

One Tree Hill (season 3): The third season of "One Tree Hill", an American teen drama television series, began airing on October 5, 2005.  The season concluded on May 3, 2006, after 22 episodes.  It is the final season that aired on The WB television network.  Season three dipped in ratings, averaging 2.8 million viewers weekly.

Buffy the Vampire Slayer: The series received critical and popular acclaim, frequently being listed as one of the greatest TV shows of all time, and usually reached between four and six million viewers on original airings.  Although such ratings are lower than successful shows on the "big four" networks (ABC, CBS, NBC, and Fox), they were a success for the relatively new and smaller WB Television Network.

Billie Jenkins: Billie Jenkins is a fictional character who appeared in the American television supernatural drama "Charmed", which aired on the WB Television Network (The WB) from 1998 to 2006.  The character was created by executive producer Brad Kern and was portrayed by Kaley Cuoco.  Billie was developed in response to The WB's request for a new character, and was originally intended to expand the show in a new direction for a possible ninth season or a spin-off series.  The opinions of media outlets were divided on whether she should return for a "Charmed" reboot or a cast reunion.

The Harvest (Buffy the Vampire Slayer): "The Harvest" is the second episode of season one of the WB Television Network television series "Buffy the Vampire Slayer".  It was written by executive producer Joss Whedon and directed by John T. Kretchmer.  The episode originally aired in feature-length format alongside part one, "Welcome to the Hellmouth", on March 10, 1997, and attracted 3.4 million viewers.  As such, and even though it is typically shown as two separate episodes in reruns, the action continues directly from the cliffhanger ending of "Welcome to the Hellmouth", as Buffy Summers (Sarah Michelle Gellar) struggles to save Jesse McNally's (Eric Balfour) life.

List of former WB affiliates: This is a list of stations which were affiliated with The WB Television Network in the United States at the time of the network's closure.  The WB shut down September 17, 2006.  Former affiliates of The WB became affiliates of The CW, My Network TV, or revert to independent status.  Some WB affiliates dropped WB programming on September 5, 2006 in favor of MyNetworkTV.

Supporting paragraphs: Bailey Chase Buffy the Vampire Slayer
Answer: Graham Miller