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Sully piano.jpg
PERFORMER Richard Hunt
DEBUT 1974

Sully is a construction worker, and a friend and colleague to Biff, who first appeared in Season 5,[1] though he was mentioned by name by Biff during his first appearances in Season 4.


Sully's hat before it was labelled with his name.

Sully and Biff


Sully is never heard speaking on the show, typically because the talkative Biff never lets him get a word in edgewise. In the song "Think of Your Fingers," Biff recalls Sully giving him advice on how to remember the number 5. Also, in Big Bird Gets Lost, while drilling loudly, Biff tells Big Bird what Sully says. Biff actually listened to Sully in the introduction to "This Song is For the Birds", but as Sully whispered in Biff's ear, it was inaudible to the audience.

Sully's utterances have been prevented by others as well. In one segment (First: Episode 1156), Grover asks Sully why the number two is his favorite number and, just as Sully starts to open his mouth, asks if the number two is the most wonderful number (he then shakes his head in disagreement). In Episode 3333, when Sully finally shows up on Sesame Street and Biff asks him what kept him, Bob interrupts Sully to inform Biff of what has happened. In Episode 2320, Biff keeps interrupting Sully as he instructs him to give a talk on listening, but when Biff leaves, Sully gets interrupted by the announcer as the sponsors are announced.

Piano Playing

Sully playing the piano in Episode 1955

In addition to working in construction, Sully is skilled at playing the piano. However, Biff is sometimes oblivious to this. One of the first instances of Sully's piano talents came in a season 7 segment in which Biff and Sully move a piano. Biff tries to play some scales, having problems with a simple set of keys, but when he leaves, Sully plays a classical piece, with Biff unaware. (First: Episode 0911)

In a later episode, Biff wants Bob to give Sully lessons so the two can keep up (Bob initially thought the lessons were for Biff). After hearing Biff's poor playing and then hearing Sully play beautifully, Biff asks if Bob could teach Sully to play like him, to which Bob just says no.

Biff later realizes that Sully can play the piano well. In a season 17 segment, when Biff wants Sully to hold off on work until he gets his radio to listen to music, Sully makes a piano and plays music for Biff, who drowns out the music with his drilling. (First: Episode 2120) In Sing Along, when Big Bird wants to sing "Cheer Up" but none of the adults know the song, Biff informs them that Sully knows the song, and he does warm up practice before he starts playing the song. When the two form the group Biff and Sully and the Hardhats in Episode 2874, Sully plays piano for the group.


  • Though he first physically appeared in season 5, he is referred to by name in Biff's first appearance in Episode 0487.
  • In Episode 0606, Biff mentions that Sully is married and recently had a baby girl named Junior.


See also Biff and Sully Sketches

Episodic appearances

Book appearances