Tyler James Williams (b. 1992) is a former child actor who began his career at the age of four, appearing on Sesame Street for several seasons, appearing in Elmo's World: Doctors and the Kwanzaa segment of Elmo's World: Happy Holidays (which was repackaged into A Sesame Street Christmas Carol).
- Episode 3851: Tyler hip hop dances with Gina and others.
- Episode 3870: Elmo's World: Telephones: A girl phones Tyler on the phone.
- Episode 3875: Appears with other kids to do the "Elephant Dance" with Big Bird and an elephant.
- Episode 3877: Ernie's Show and Tell, Tyler draws a picture of Rubber Duckie on the computer.
- Episode 3911: Appears in the Street scene as a Birdketeer.
- Episode 3919: Elmo's World: Teeth: Tyler and his brother, T.J., show how they care of their teeth by brushing them.
- Episode 3952: Appears with the cast in singing "Uno Dos Tres".
- Episode 3969: Appears with Keb' Mo and others in "Everybody Be Yo'Self".
- Episode 3992: Appears with other kids to draw Baby Bear's Porridge Party invitations.
- Episode 4032: Sings with Gabi and kids on the steps of 123 Sesame Street, and presents show sponsors with Big Bird.
- Episode 4089: Appears in the song, "Broccoli is Good" (to the tune of "Johnny B. Goode").
- Elmo's World: Happy Holidays!, with T.J.