Sarge / Doc / O'Malley / Bill Jenkins / Commissioner / Self (98 episodes, 2003-2022)
Grif (96 episodes, 2003-2022)
Simmons / Red Zealot / Self (92 episodes, 2003-2022)
Caboose / Self (74 episodes, 2003-2020)
Church / Lopez / Audience Member #1 / Blue Zealot / Scientist / Vic (70 episodes, 2003-2020)
Tucker / Junior (43 episodes, 2003-2022)
Donut (35 episodes, 2003-2022)
Sister (16 episodes, 2006-2022)
Washington (14 episodes, 2009-2022)
Carolina (8 episodes, 2014-2022)
Tex (5 episodes, 2005-2008)
Sheila (4 episodes, 2004-2020)
Andy / Jim (3 episodes, 2006-2008)
Audience Member #2 / Gamer #2 / Palomo (3 episodes, 2011-2020)
Jax (3 episodes, 2018-2020)
Lopez (3 episodes, 2022)
Gamer #1 / Rookie (2 episodes, 2011-2013)
Freckles (2 episodes, 2013-2015)
Kimball (2 episodes, 2014-2020)
Chrovos (2 episodes, 2020)
Cronut / Freckles (2 episodes, 2020)
Caboose (2 episodes, 2022)
Female Donut (1 episode, 2004)
Self (1 episode, 2005)
Self (1 episode, 2007)
Miller (1 episode, 2008)
Stu Stuman (1 episode, 2013)
Dr. Grey (1 episode, 2014)
Freelance Narrator (1 episode, 2017)
Atlus (1 episode, 2020)
Genkins (1 episode, 2020)
Jensen (1 episode, 2020)
Locus (1 episode, 2020)