Noel MacNeal has been working with the Muppets since the early 1980s. Here's a look at some of the characters he's performed. | Muppet Wiki

Here’s a behind the scenes look at The Muppet Christmas Carol, featuring Dave Goelz performing Gonzo and Steve Whitmire bringing Rizzo to life. | Disney History Channel

Michael Caine, Kermit the Frog, Gonzo and more chatted with ET on the set of 'The Muppet Christmas Carol' in 1992. In behind-the-scenes interviews, the Oscar winner, who plays iconic literary curmudgeon Ebenezer Scrooge, shared his comedy secret for acting with The Muppets. | Entertainment Tonight