[2] It was during a school trip to Tallinn that Käro became interested in theatre after watching Estonian ballerina Helmi Puur perform in Swan Lake.
[4] Among his more memorable roles in theater were in works by: Arthur Miller, Anton Chekhov, William Shakespeare, A. H. Tammsaare, Johann Wolfgang von Goethe, August Kitzberg, Harold Pinter and Eno Raud.
[6] In celebration of Volli Käro's upcoming 50th year at the Rakvere Teater, a production of Sławomir Mrożek's 1986 absurdist comedy The Contract premiered on 24 May 2013.
Directed by Indrek Apinis, the two-person play starred Käro and actor Märt Avandi and began productions in the autumn of 2013 at Rakvere Theatre's small hall.
In 2012, he played the role of Karl in the Toomas Hussar directed comedy feature film Seenelkäik (English: Mushrooming).