Possible Clues:

• Wilshire Blvd. gp. that represents celebs
• Reptile genus
• Broadway star Hagen
• Old stage star Hagen
• "Respect for Acting" writer Hagen
• The NBA's Jazz, on scoreboards
• ___ Pippig, three-time winner of the Boston Marathon
• N.B.A.'s Jazz, on scoreboards
• Hagen in the American Theater Hall of Fame
• Hagen of Broadway fame