Good Morning!
Alive, male
Yes, this person has been on a cereal box
R S
Not:
Roger Staubach
Richard Simmons /(?Could have been on a cereal box?
19 questions to go
Good Morning!
Alive, male
Has been on a cereal box
Not a sports figure
R S
18 questions to go
Good Morning!
Real, live, male entertainer
Has been on a cereal box
Not a sports figure
R S
16 questions to go
Good Morning!
Real, live, male entertainer
Acting hyphenate
Has been on a cereal box
Not a sports figure
R S
15 questions to go
Good Morning!
Not American
Real, live, male entertainer
Acting hyphenate
Has been on a cereal box
Not a sports figure
R S
14 questions to go
Rob Schneider?
(the only person I can think of who was on a cereal box was Bruce Jenner, so I'm setting aside that clue for now...

)
Ravi Shankar? (can't imagine he was ever on a cereal box...)
Good Morning!
Not:
Roy Schieder
Rob Schnieder (aren't they American?
Not Ravi Shankar
Not American
Real, live, male entertainer
Acting hyphenate
Has been on a cereal box
Not a sports figure
R S
14 questions to go
Whoops, missed the "not American" post...
Good Morning!
Not:
Roy Schieder
Rob Schnieder (aren't they American?
Not Ravi Shankar
European
Real, live, male entertainer
Acting hyphenate
Has been on a cereal box
Not a sports figure
R S
13 questions to go
It's interesting how with one question, Gustav changed an easy one into hard one:
Ringo is Correct!!