have done vs Has done a cameo

Some examples from the web:

• What kids have done for years.
• The police here have done nothing.
• No daughter nowadays could have done better.
• I couldn't have done that unless I had clearance.
• Still could have done permanent damage.
• Most of my patients have done extraordinary things.
• Dijon Intelligence have done it several times.
• They have done the worst things imaginable.
• The unsub should have done his research.
• And I would have done a lot earlier...
• Some have done wonderful work and extensive research.
• I have done you a kindness today.
• Knowing when people have done something wrong.
• Fire doors must have done their job.
• Our Clubs have done their part.
• Your artists have done an incredible, detailed job.
• From those of us that have done it before.
• He would have done it immediately, in front of me.
• You have done a remarkable job today, Mr. President.
• I trust there was nothing you and your team could have done differently.

Some examples from the web:

• Mar 20, 2014 ... Ironically, Kirkman has done a cameo already, in which he was devoured by zombies...just not on his own show. Back in 2012, Kirkman ...
• Aug 26, 2014 ... Shah Rukh Khan has done a cameo in his friend Nagesh Kukunoor's Marathi film Dhanak, for which he recently shot in Rajasthan.
• Sep 20, 2015 ... file picLOS ANGELES, Sept 20 — Guess which other star of the original “ Ghostbusters” has done a cameo for the new reboot movie? According ...
• Jan 23, 2016 ... While Tamanaah is the film's heroine, the gorgeous Shriya Sharan -- last seen in Nagarjuna's Manam -- has done a cameo in the film.