Appearances Original Tenure In each of the  series' first seven seasons, Fox appeared in all but one episode each season , and then appeared in the first seven episodes of the eighth season before departing the main cast. Return Upon rejoining the regular cast in the series' eleventh season, Fox once again appeared in most episodes, including the series finale  .
Appearances Original Tenure In each of the original series' first seven seasons, Fox appeared in all but one episode , and then appeared in the first seven episodes of the eighth season before departing the main cast. Return Upon rejoining the regular cast in the series' eleventh season, Fox once again appeared in most episodes, including the series finale . She will return in the sequel CSI: Vegas .
A
original
D
each season
A
. She will return in the sequel CSI: Vegas