Complex sentence: Jack Mulhall played Kennedy in the serial "The Clutching Hand" for the Weiss Brothers who also proudced the 1951 TV series called "Craig Kennedy, Criminologist", which was based on the same character.
Split into simpler sentences: Jack Mulhall played Kennedy in the serial "The Clutching Hand". There is a 1951 TV series called "Craig Kennedy, Criminologist", which was based on the same character.