*Courtney B. Vance makes a guest appearance in tonight’s summer season finale of “The Closer,” but there may be more visits to the show down the road, according to TV Guide.

The actor and father of 4-year-old twins with wife Angela Bassett plays Deputy Chief Tommy Delk, head of the LAPD’s counter-terrorism unit. Delk teams with Brenda Leigh Johnson (Kyra Sedgwick) as part as a joint investigation between the LAPD and the FBI.

Vance most recently starred in ABC’s cancelled sci-fi drama FlashForward.

His first appearance on “The Closer” will air tonight at 9/8c on TNT. [Watch a clip below.]