Fantastic or Fashionable can be a compliment starting with letter F.
Floccinaucinihilipilification is the longest word starting with F; it means the act of estimating something as worthless.
firefly
Fortaquad
One word for being late starting with the letter F is forgot.
Felix.
Omarsharif
there is a lot like Fredrick Douglas
Demi Lovato
Rachel McAdams
Ivan Rodriguez
John F. Kennedy.
Diana, Princess of Wales.
Farley Hughs
Franklin roosevelt
i like cereal just kidding, there is none
Al Unser