Complex sentence: Levitan is also an actor with roles in a string of Canadian and international films and television series, including a guest appearance in The West Wing, and one of Canada's pre-eminent children's entertainers.
Split into simpler sentences: Levitan is also an actor with many roles in a string of Canadian and international films as well as TV series, including a guest appearance in The West Wing. In addition to all of this, Jerry Levitan is one of Canada's pre-eminent children's entertainers.