08/07/2012 04:36 pm ET

'Sesame Street': Kristen Bell And More TV Stars Stop By For Season 43

"Sesame Street" Season 43 will be filled with stars ... TV stars to be exact.

"Mad Men" actor Jon Hamm, "House of Lies" actors Kristen Bell and Don Cheadle and more very familiar TV faces will be paying a visit to Elmo and co. when the new season premieres on Mon., Sept. 24 on PBS Kids. Other familiar faces stopping by include "Parenthood's" Dax Shepard, "Justified" star Timothy Olyphant, Ed Helms, Zac Efron, Melissa McCarthy and Steve Carell, just to name a few.

Season 43 will also see parodies of "The Voice" and "Downton Abbey."

Take a look at some of the TV stars heading to "Sesame Street" in the gallery below.

"Sesame Street" premieres on Mon., Sept. 24 on PBS Kids. Check your local listings for times.

Sesame Street Season 43 Guest Stars