Answer:
There is the President, vice pres., speaker of the house and the cabnet which has any amount of people the president want.
The President and Vice President are in the Executive Branch, but the speaker of the House is part of the Legislative Branch.
Another View: The question is impossible to answer.
When referring to the "Executive Branch" of government you are actually referring to ALL of the employees, both appointed and hired, that encompass the operations of the entire infrastructure of government at ALL levels, federal, state, county and municipal.