Sewell is most noted for one of his more recent roles in "The Detectives", where he played superintendent Frank Cottam, and for his role as Colonel Alec Freeman in the science fiction series, "UFO".
Sewell is most noted for one of his more recent roles in "The Detectives". He played superintendent Frank Cottam. He played for his role as Colonel Alec Freeman in the science fiction series, "UFO".