No. Sean Penn's father was the late Leo Penn, who was blacklisted in the 1950's and ended up directing a great deal of television shows. Arthur Penn's son is Matthew Penn, who executive produced 'Law and Order' for many years.
John Allan Cecil Cecil-Wright died in 1982.
Cecil Anderson's birth name is Cecil Hunter Anderson.
Cecil Elliott's birth name is Cecil Melvin.
Cecil Raleigh's birth name is Rowlands, Cecil.
Cecil Parker's birth name is Schwabe, Cecil.
Do you mean Sean Penn?
The Cecil was created in 1884.
Cecil Cooney's birth name is Randolph Cecil Cooney.
Cecil Cooper's birth name is Cecil Celester Cooper.
Cecil Mack's birth name is Richard Cecil McPherson.
Cecil Lewis's birth name is Cecil Arthur Lewis.