Vince Johnson , played by Hepburn Graham , first appears in August 1989 .
Was one of many characters to be axed early in 1990 , following the introduction of the serial 's new executive - producer , Michael Ferguson .
Vince Johnson , played by Hepburn Graham , first appears in August 1989 , but was one of many characters to be axed early in 1990 , following the introduction of the serial 's new executive - producer , Michael Ferguson .