The OP states that this Volkswagen commercial was released in 1970. I would seriously doubt that as most of these performers were no longer with the Ringling Bros. and Barnum & Bailey Circus in 1970.
I would suppose that it is from no later than 1966 since Dennis Stevens and Albert White left for the Beatty-Cole show at the end of that season.
Lou Jacobs and Prince Paul Alpert guide the car into the ring.
Michael "Coco" Polakovs is the first one out followed by Freddie Freeman, Albert "Flo" White, Johnny Day, Owen "Duffy McQuade, Marcus Drougett, Walter Guice, Kinko Sunberry, Gene Lewis, Bobby Johnsen, Dennis Stevens, Duane "Uncle Soapy" Thorpe, Mark Anthony, Lou Jacobs, Barry Sloane on stilts and Frankie Saluto from underneath the fat lady, which would have been funnier if it was Flo White in drag.
Notably absent from that Alley would be Billy Ward and Otto Griebling.