Although unnamed, the character was referred to on the set as "FilFil," as his design is based on that of Filfil from Alam Simsim. Beginning in Season 38, he gained an identity as Murray, hosting the "What's the Word on the Street?" segments that precede each episode of Sesame Street. In season 39, he began appearing in his own segment, Murray Has a Little Lamb, where he goes to a certian school with his pet lamb, Ovejita. In season 40, he started serving as a host of the new "block format", presenting the letter and number of the day, introducing upcoming sketches within the episodes, and announcing the sponsors. Murray was given a new segment in Season 42, Murray's Science Experiments, which are spread through the tune-ins. He is again with Ovejita.
- Based on the song "Sound of the Letter L", the earliest version of Murray Monster has pink hair, hot magenta eyelids and a blue nose and the later version of himself has Yellow nose, orange eyelids and hair but he has the same color as the early version for the body and face.
- In a deleted interview scene for What's the Word on the Street?, used in a Behind the Scenes spot on the Sesame Street website, Murray alludes to an as-of-yet-unseen superhero alter ego.
- p_p_lifecycle=0&p_p_state=normal&p_p_mode=view&p_p_col_id=column-2&p_p_col_count=1 "Here's Murray!" behind-the-scenes video about Murray's creation on Sesamestreet.org
For a gallery of Murray Monster, Se Murray Monster/Gallery for more photos