It seems you may be thinking of Leonard Maltin, a well-known film critic and historian. He has been involved in numerous film and television projects, including:
* Film Critic: Leonard Maltin has been a film critic for over 50 years, appearing on television shows like "Entertainment Tonight" and "Siskel & Ebert."
* TV Show Host: He hosted his own show "Maltin on Movies" and was a regular commentator on "TCM Presents: Private Screenings."
* Author: He has written numerous books on film, including the iconic "Leonard Maltin's Movie Guide."
* Voice Acting: He has voiced characters in animated films and TV series, like "The Simpsons" and "The Critic."
* Film Historian: He has consulted on numerous documentaries and film-related projects.
If you're looking for information about Leonard Maltin's work, you can find a comprehensive list of his credits on websites like IMDb.