Name	Known for
Fran Brill Betty Lou / Carol the Baker (voice) Betty Lou / Carol the Baker (voice) See fewer	Sesame Street (1969)
Northern Calloway David David See fewer	Sesame Street (1969)
Emilio Delgado Luis Luis See fewer	Sesame Street (1969)
Margaret Hamilton Miss Gulch Miss Gulch See fewer	The Wizard of Oz (1939)
Jim Henson Ernie / Guy Smiley (voice) Ernie / Guy Smiley (voice) See fewer	The Muppet Show (1976)
Richard Hunt Gladys the Cow (voice) Gladys the Cow (voice) See fewer	The Muppet Show (1976)
Will Lee Mr. Hooper Mr. Hooper See fewer	Daniel (1983)
Loretta Long Susan Susan See fewer	Follow That Bird (1985)
Sonia Manzano Maria Maria See fewer	Sesame Street (1969)
Bob McGrath Bob Bob See fewer	Follow That Bird (1985)
Jerry Nelson Mr. Johnson / Herry Monster / Delivery Man / The Announcer (voice) Mr. Johnson / Herry Monster / Delivery Man / The Announcer (voice) See fewer	The Muppet Show (1976)
Roscoe Orman Gordon Gordon See fewer	Follow That Bird (1985)
Frank Oz Cookie Monster / Bert / Grover / Farmer Frankie (voice) Cookie Monster / Bert / Grover / Farmer Frankie (voice) See fewer	The Muppet Show (1976)
Buffy Sainte-Marie Buffy Buffy See fewer	An Officer and a Gentleman (1982)
Grace Slick Singer 'Jazz #9' (voice) Singer 'Jazz #9' (voice) See fewer	American Hustle (2013)
Marilyn Sokol Bread (voice) Bread (voice) See fewer	Crocodile Dundee II (1988)
Caroll Spinney Big Bird / Oscar the Grouch Big Bird / Oscar the Grouch See fewer	Sesame Street (1969)
Caroly Wilcox Actress (voice) Actress (voice) See fewer	The Muppet Movie (1979)
John Williams III John-John John-John See fewer	Letting Go (2010)