Andrzej Witold Wajda (] ; 6 March 1926 – 9 October 2016) was a Polish film and theatre director.
 Recipient of an Honorary Oscar, the Palme d'Or, as well as Honorary Golden Lion and Golden Bear Awards, he was a prominent member of the "Polish Film School".
 He was known especially for his trilogy of war films consisting of "A Generation" (1954), "Kanał" (1956) and "Ashes and Diamonds" (1958).
Miss Piggy is a Muppet character known for her breakout role in Jim Henson's "The Muppet Show".
 Since her debut in 1976, Miss Piggy is notable for her volatile diva personality, tendency to use French phrases in her speech and practice of karate.
 She was also known for her on-again/off-again relationship with Kermit the Frog, which began in 1978 and has been on a hiatus since 2015.
 Frank Oz performed the character from 1976 to 2000 and was succeeded by Eric Jacobson in 2001.
Bert is a yellow Muppet character on the long-running children's television show, "Sesame Street".
 Bert was originally performed by Frank Oz.
 Since 1997, Muppeteer Eric Jacobson has been phased in as Bert's primary performer, like Grover, although Frank Oz still performs Bert occasionally.
 Bert has also made cameo appearances within "The Muppets" franchise, including "The Muppet Show", "The Muppet Movie", and "The Muppets Take Manhattan".
Sam Eagle is a Muppet character originating from the television show "The Muppet Show", where he was performed by Frank Oz.
 Sam has appeared in every Muppet film; as himself in "The Muppet Movie", "The Great Muppet Caper", "The Muppets Take Manhattan", "Muppets from Space", and "The Muppets", as well as the Head Schoolmaster in "The Muppet Christmas Carol," Samuel Arrow in "Muppet Treasure Island" and a CIA agent in "Muppets Most Wanted."
 He also appears in the television series, "The Muppets."
Andrzej Korzyński is a Polish composer who has worked with film directors Andrzej Wajda ("The Birch Wood", "Man of Marble") and Andrzej Żuławski.
A Generation (Polish: Pokolenie ) is a 1955 Polish film directed by Andrzej Wajda.
 It is based on the novel "Pokolenie" by Bohdan Czeszko, who also wrote the script.
 It was Wajda's first film and the opening installment of what became his Three War Films trilogy set in the Second World War, completed by "Kanal" and "Ashes and Diamonds".
Dr. Teeth and The Electric Mayhem is a Muppet rock house band that debuted on "The Muppet Show".
 Following "The Muppet Show", they appeared in various Muppet movies and television specials and have also recorded album tracks and covered numerous songs.
 Dr. Teeth and Animal were designed by Jim Henson while the rest of the original band members were designed by Michael K. Frith.
 They made their debut in 1975's "" and the pilot for "The Muppet Show".
The Swedish Chef is a Muppet character that appeared on "The Muppet Show".
 He was originally performed by Jim Henson and Frank Oz simultaneously, with Henson performing the head and voice and Oz performing the character's live hands.
 The Swedish Chef is currently performed by Bill Barretta.
 His best known phrase is "Bork bork bork".
Frank Oz (born Frank Richard Oznowicz; born May 25, 1944) is an English-born American puppeteer, filmmaker and actor.
 His career began as a puppeteer, where he performed the Muppet characters of Miss Piggy, Fozzie Bear, Animal, and Sam Eagle in "The Muppet Show", and Cookie Monster, Bert, and Grover in "Sesame Street".
 He is also known for being the puppeteer and voice of Yoda in the "Star Wars" films.
Samson is a 1961 Polish film directed by Andrzej Wajda that uses art house aesthetics to tell a story about the Holocaust.
 Wajda's World War II film alludes to the Old Testament story of Samson, who had supernatural physical strength.
 But unlike the Biblical character, Wajda's Samson has great emotional strength.

Question: Who is began his career on "The Muppet Show," Frank Oz or Andrzej Wajda?
Answer: Frank Oz