- Born: 10/13/1963 in Winnipeg, Manitoba, Canada
- Birthname: Donald Callis
- Height & Weight: 6'2", 231 Ib
- BCW Can-Am Tag Team Championship – with Terry Taylor
- Lutte Lanaudière Tag Team Championship – with El Diablero
- IWA Heavyweight Champion (2 times)
- WFWA Canadian Heavyweight Championship (5 times)
For most of his career he has been known as either Cyrus (shortened from Cyrus the Virus) or Don Callis. He first gained international attention working under the name The Jackyl working for the World Wrestling Federation (WWF). Callis is currently Impact Wrestling’s co-executive vice president, while also working for New Japan Pro-Wrestling (NJPW) as an English language commentator on NJPW World.
While in the WWF, Callis managed a group known as The Truth Commission, later on The Oddities and The Acolytes, before being fired in 1999. From 1999 to 2003 he worked for Extreme Championship Wrestling (ECW) strictly as a manager and fictional “network representative” in various ECW storylines. While in ECW he led a group known as The Network. In 2003 he was introduced as an onscreen character for Total NonStop Action Wrestling and returned to the company (now called “Impact Wrestling”) in 2017, where he took an executive position as well as being an on-screen commentator.
In 2020, Don Callis appeared on AEW Dynamite for the first time. It was later revealed he was the manager of Kenny Omega after he became AEW World Champion.