Known for Acting

Jerry Nelson (July 10, 1934 – August 23, 2012) was an American puppeteer, best known for his work with The Muppets. Renowned for his wide range of characters and singing abilities, he performed Muppet characters on Sesame Street, The Muppet Show, Fraggle Rock, and various Muppet movies and specials. Description above from the Wikipedia article Jerry Nelson, licensed under CC-BY-SA, full list of contributors on Wikipedia.
1986
as Camilla / Count von Count / Crazy Harry / Dr. Julius Strangepork / Lew Zealand / Robin the Frog / Louis Kazagger / Sgt. Floyd Pepper / Two-Headed Monster (Frank) / Gobo Fraggle
2011
as Telethon Announcer (voice) (uncredited)
1990
as Count von Count / Duck (voice)
1979
as Floyd Pepper / Robin the Frog / Crazy Harry / Lew Zealand / Camilla / Dr. Bunsen Honeydew (assistant) (voice)
1982
as High Priestess / Dying Emperor (voice)
2014
as Announcer (voice) (uncredited)
1992
as Tiny Tim Cratchit / Jacob Marley / Ghost of Christmas Present / Lew Zealand / Ma Bear / Mouse / Mr. Applegate / Penguin / Pig Gentleman / Pops / Rat (voice)
2024
as Self (archive footage)
2007
as Count von Count (voice)
1981
as Floyd Pepper / Pops / Lew Zealand / Crazy Harry / Louis Kazager
2002
as Robin the Frog / Statler / Announcer / Pops / Floyd Pepper
1990
as Robin the Frog (voice)
1994
as Self (archive footage)
1994
as Robin the Frog / Montague the Rat / Big Bad Wolf (voice)
1996
as Statler / Blind Pew / Mad Monty / Floyd Pepper / Lew Zealand / Tomato / Pirate / Skulls / Trelawney's Butler / Screaming Cat (voice)
1999
as Robin / Statler / Ubergonzo (voice)
1984
as Camilla / Lew Zealand / Floyd / Bear / Chicken / Crazy Harry / Dog / Dr. Julias Strangepork / Granny / Penguin / Pops / The Count (voice)
1998
as The Count / Two-Headed Monster (1) / Biff (voice)
2002
as Statler (voice)
1994
as Count von Count / Herry Monster (voice)