Kevin M. Kopelow (born June 28, 1963^[1] in Los Angeles, California) and Heath Seifert (born 1968^[2] in Los Angeles, California) are an American television writing and producing team. They have written and produced All That, Kenan & Kel, and Cousins for Life for Nickelodeon and Austin & Ally for Disney Channel, among other series. They also created the latter two.^[3]

As an actor, Kopelow is best known for appearing as Kevin, the stage manager on All That, as well as appearing as a panelist on the game show Figure It Out.

• Good Burger 2 (2023)
• Warped! (2021, also creators)
• Cousins for Life (2018–2019, also creators)
• Nickelodeon's Ho Ho Holiday Special (2015)
• Austin & Ally (2011–2016, also creators)
• Star and Stella Save the World (2007)
• All That 10th Anniversary Reunion Special (2005)
• Stripperella (2003–2004)
• 100 Deeds for Eddie McDowd (2002)
• KaBlam! (1996–1998)
• Kenan & Kel (1996–2000)
• All That (1994–2000, 2019–2020)
• Two Heads Are Better Than None (2000)
• 1999 Kids' Choice Awards (1999)
• Good Burger (1997)
• Space Cases (1996)
• Singled Out (1995)

• Good Burger 2 (2023)
• Warped! (2021)
• Cousins for Life (2018–2019, also writers)
• Austin & Ally (2011–2016, also writers)
• Jonas (2009)
• Sonny with a Chance (2009)
• Campus Ladies (2006–2007)
• Star and Stella Save the World (2007)
• Hi-Jinks (2005–2006)
• Stripperella (2003)
• Kenan & Kel (1996–2000)
• All That (1994–2005, 2019–2020)
• Cousin Skeeter (1998–2001)
• Good Burger (1997)

• All That (1994–2005, 2019–2020) - Kevin the Stage Manager (Seasons 1-6, 1995-2000)
• Kenan & Kel (1996–2000) - Paramedic #2, Party Decorator
• Good Burger (1997) - Sad Clown
• Figure It Out (1997–1999) - Himself/panelist

• Kevin Kopelow at IMDb
• Heath Seifert at IMDb