<P> Among the show's many recurring roles, Richard Lewis, Ted Danson, and Wanda Sykes play fictionalized versions of themselves as old friends of Larry's with whom he frequently butts heads . Shelley Berman plays Larry's father, Nat David . Bob Einstein frequently appears as Marty Funkhouser, another of Larry's oldest friends . Kaitlin Olson recurred as Becky, Cheryl's sister . In seasons six and seven, Vivica A. Fox appears as Loretta Black, a member of the Black family, a family of hurricane evacuees who take refuge in Larry's house upon Cheryl's invitation . Loretta eventually becomes Larry's primary love interest for a time once he and Cheryl split up . </P> <P> Celebrities, including actors, comedians, authors, musicians and athletes, often make guest appearances on the show, with a large portion of them playing themselves, or fictional versions thereof . Some of these guest stars are Mary Steenburgen, Mel Brooks and Anne Bancroft, Michael York, Martin Scorsese, Ben Stiller and Christine Taylor, Martin Short, Jimmy Kimmel, Lucy Lawless, David Schwimmer, Shaquille O'Neal, Rosie O'Donnell, Ricky Gervais, Michael J. Fox, Hugh Hefner, Alanis Morissette, Bill Buckner, Mookie Wilson, and the main cast of Seinfeld--Jerry Seinfeld, Julia Louis - Dreyfus, Jason Alexander and Michael Richards . Notable people who filled in fictional roles include Bob Odenkirk, Bea Arthur, Dustin Hoffman, Ed Asner, Sacha Baron Cohen, Stephen Colbert, Samantha Mathis, Tim Meadows, Elisabeth Shue and Steve Coogan . </P> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="3"> Special </Td> <Td_colspan="2"> October 17, 1999 (1999 - 10 - 17) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 10 </Td> <Td_colspan="1"> October 15, 2000 (2000 - 10 - 15) </Td> <Td> December 17, 2000 (2000 - 12 - 17) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 10 </Td> <Td_colspan="1"> September 23, 2001 (2001 - 09 - 23) </Td> <Td> November 25, 2001 (2001 - 11 - 25) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 10 </Td> <Td_colspan="1"> September 15, 2002 (2002 - 09 - 15) </Td> <Td> November 17, 2002 (2002 - 11 - 17) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 10 </Td> <Td_colspan="1"> January 4, 2004 (2004 - 01 - 04) </Td> <Td> March 14, 2004 (2004 - 03 - 14) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 5 </Td> <Td_colspan="2"> 10 </Td> <Td_colspan="1"> September 25, 2005 (2005 - 09 - 25) </Td> <Td> December 4, 2005 (2005 - 12 - 04) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 6 </Td> <Td_colspan="2"> 10 </Td> <Td_colspan="1"> September 9, 2007 (2007 - 09 - 09) </Td> <Td> November 11, 2007 (2007 - 11 - 11) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 7 </Td> <Td_colspan="2"> 10 </Td> <Td_colspan="1"> September 20, 2009 (2009 - 09 - 20) </Td> <Td> November 22, 2009 (2009 - 11 - 22) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 8 </Td> <Td_colspan="2"> 10 </Td> <Td_colspan="1"> July 10, 2011 (2011 - 07 - 10) </Td> <Td> September 11, 2011 (2011 - 09 - 11) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 9 </Td> <Td_colspan="2"> 10 </Td> <Td_colspan="1"> October 1, 2017 (2017 - 10 - 01) </Td> <Td> December 3, 2017 (2017 - 12 - 03) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr>

When did curb your enthusiasm go off the air