Pirates

*Eine Möhre für Zwei'*s pirate story promo (2014).

A pirate is any person who commits robbery at sea. While piracy is a serious and problematic crime in any time period, modern depictions have glorified the practice, particularly that of the 18th century. They are often depicted as fun and playful, gaining great wealth and fame.

The Muppet Show

In episode 223, the "Pigs in Space" sketch featured John Cleese as a pirate named Long John Silverstein.
Episode 412 attempts to re-create a "Pigs in Space" sketch entitled "Pig Alien," featuring a pirate pig named Captain Blueboar.
The plot of episode 507 involved guest star Glenda Jackson taking over The Muppet Theatre with a band of Whatnot pirates (one of whom is named Dead Ear Dick), Eric the Parrot, various Frackles, and Sweetums as Short John Silver.
Episode 515 included a brief appearance by a pirate At the Dance who kept spinning his partner around in a circle because his wooden leg was stuck in the floor.

Muppet Babies

In "Treasure Attic," the babies stumble upon The Pirettes while looking for Nanny's treasure. The Pirettes sing the song "Pirates".
Baby Gonzo appears as Long John Silver from Treasure Island in Muppet Babies' Classic Children's Tales.

The Jim Henson Hour

In episode 102, a sketch had Ted Danson and his date on a pirate-themed cruise with him having to fight through pirates to get to the salad bar. Gonzo, Leon, and Link Hogthrob make appearances as pirates.

Muppet Treasure Island

Pirates of the Hispaniola

Pirates at the Admiral Benbow Inn

Other Pirates

Sesame Street

Ernie, Bert, Grover and Cookie Monster pose as fictional pirate Sandokan and his fellow pirates on a cover of Epi, Blas y los demás (1970s).
Count von Count and several Anything Muppets reenact the 1982 Sesame Street Storytime Calendar.
The Bookaneer Captain leads an Anything Muppet pirate and a salty dog in episode 4135.
Long John Silver and Long Jane Silver visit the laundromat in episode 3033.
Ernie and Bert appear as pirates, looking for treasure on the open sea, in a Bert and Ernie's Great Adventures segment. The "Pirates" segment was later adapted into a storybook and an iPad app.
Germany's Sesame Street spin-off Eine Möhre für Zwei will feature a five-part pirate story during its fourth season, produced in 2014.
An entry of "Cookie's Crumby Pictures" features Cookie Monster as Captain Snack Sparrow, a spoof of Captain Jack Sparrow.

Other

Dinkybeard (The Secret Life of Toys)
Long Joel Silver (Statler & Waldorf: From the Balcony)
Sir Francis Drake (historical figure)