Cast change history
September 16, 2007: Ji Sang-ryul's last episode
October 28, 2007: Kim C joins the cast
November 4, 2007: Noh Hong-chul's last episode
November 11, 2007: Lee Seung-gi joins the cast
December 2, 2007: Kim Jong-min leaves the show because of mandatory military service
December 9, 2007: MC Mong joins the cast
December 27, 2009: Kim Jong-min rejoins the cast
June 6, 2010: Kim C's last episode
September 19, 2010: MC Mong's last episode
March 6, 2011: Uhm Tae-woong joins the cast
September 25, 2011: Kang Ho-dong's last episode[9]
February 26, 2012: 1 Night 2 Days Season 1's last episode (Lee Seung-gi and Eun Jiwon's last episode)
March 4, 2012: 1 Night 2 Days Season 2's first episode (Kim Seung-woo, Cha Tae-hyun, Sung Si-kyung, and Joo Won's first episode)
March 2013: Kim Seung-woo's last episode and Yoo Hae-jin joins the cast
October 27, 2013: Joo Won's last episode
November 24, 2013: 1 Night 2 Days Season 2's last episode (Lee Soo-geun, Uhm Tae-woong, Sung Si-kyung, Yoo Hae-jin's last episode)
December 1, 2013: 1 Night 2 Days Season 3's first episode (Kim Joo-hyuk,[10] Kim Joon-ho, Defconn, and Jung Joon-young's first episode)
December 6, 2015: Kim Joo-hyuk's last episode
May 1, 2016: Yoon Shi-yoon joins the cast
October 9, 2016: Jung Joon-young temporarily leaves the show
January 15, 2017: Jung Joon-young rejoins the cast
December 30, 2018: Lee Yong-jin joins the cast as intern
cr: wk
September 16, 2007: Ji Sang-ryul's last episode
October 28, 2007: Kim C joins the cast
November 4, 2007: Noh Hong-chul's last episode
November 11, 2007: Lee Seung-gi joins the cast
December 2, 2007: Kim Jong-min leaves the show because of mandatory military service
December 9, 2007: MC Mong joins the cast
December 27, 2009: Kim Jong-min rejoins the cast
June 6, 2010: Kim C's last episode
September 19, 2010: MC Mong's last episode
March 6, 2011: Uhm Tae-woong joins the cast
September 25, 2011: Kang Ho-dong's last episode[9]
February 26, 2012: 1 Night 2 Days Season 1's last episode (Lee Seung-gi and Eun Jiwon's last episode)
March 4, 2012: 1 Night 2 Days Season 2's first episode (Kim Seung-woo, Cha Tae-hyun, Sung Si-kyung, and Joo Won's first episode)
March 2013: Kim Seung-woo's last episode and Yoo Hae-jin joins the cast
October 27, 2013: Joo Won's last episode
November 24, 2013: 1 Night 2 Days Season 2's last episode (Lee Soo-geun, Uhm Tae-woong, Sung Si-kyung, Yoo Hae-jin's last episode)
December 1, 2013: 1 Night 2 Days Season 3's first episode (Kim Joo-hyuk,[10] Kim Joon-ho, Defconn, and Jung Joon-young's first episode)
December 6, 2015: Kim Joo-hyuk's last episode
May 1, 2016: Yoon Shi-yoon joins the cast
October 9, 2016: Jung Joon-young temporarily leaves the show
January 15, 2017: Jung Joon-young rejoins the cast
December 30, 2018: Lee Yong-jin joins the cast as intern
cr: wk