Related Clues:

• He gets no credit
• The 13th item in a baker's dozen
• Bit part player
• When repeated, bygone newsboy's cry
• More than usual
• Added on
• "Cast of thousands" member
• Counted up
• Mixed in
• Newsdealer's shout of old
• Tribe member in many films
• Hollywood walk-on
• Did some simple arithmetic
• Got the total
• Run over