Sketch actors and cameo appearancesLate Night employed a number of sketch actors, many of whom were frequently reused in different roles in different episodes. Several years before joining the cast of Saturday Night Live, and before playing the role of Leslie Knope on another NBC TV show, Parks and Recreation, Amy Poehler often appeared as a regular in many sketches, though she was best remembered for playing the recurring role of Andy Richter's Conan-obsessed teenage sister, Stacy. Other notable comedians such as Jack McBrayer, Rob Riggle, Rob Corddry, H. Jon Benjamin, Ellie Kemper, Bobby Moynihan, Matt Besser, Ian Roberts, Matt Walsh and Andrew Daly also frequently appeared as sketch actors on the show for several years. Triumph the Insult Comic Dog (created and voiced by original head writer Robert Smigel) began as part of a sketch on Late Night. Celebrities such as Joyce Brothers, Nipsey Russell, Abe Vigoda, James Lipton, Bob Saget and William Preston as the character Carl 'Oldy' Olsen also made frequent cameo appearances in comedy sketches on the show at different periods. One of the show's graphic designers, Pierre Bernard, was featured in several sketches, such as "Pierre Bernard's Recliner of Rage" and "Nerding It Up For Pierre".
Sketch actors and cameo appearancesLate Night employed a number of sketch actors many of whom were frequently reused in different roles in different episodes Several years before joining the cast of Saturday Night Live and before playing the role of Leslie Knope on another NBC TV show Parks and Recreation Amy Poehler often appeared as a regular in many sketches though she was best remembered for playing the recurring role of Andy Richter's Conan-obsessed teenage sister Stacy Other notable comedians such as Jack McBrayer Rob Riggle Rob Corddry H Jon Benjamin Ellie Kemper Bobby Moynihan Matt Besser Ian Roberts Matt Walsh and Andrew Daly also frequently appeared as sketch actors on the show for several years Triumph the Insult Comic Dog (created and voiced by original head writer Robert Smigel) began as part of a sketch on Late Night Celebrities such as Joyce Brothers Nipsey Russell Abe Vigoda James Lipton Bob Saget and William Preston as the character Carl 'Oldy' Olsen also made frequent cameo appearances in comedy sketches on the show at different periods One of the show's graphic designers Pierre Bernard was featured in several sketches such as "Pierre Bernard's Recliner of Rage" and "Nerding It Up For Pierre"