|The original author of Gretel does not have any further information on this article. Anyone is welcome to expand further on this article. More details can be found, and this request can be discussed, on the associated talk page .|
In each edition of the Gretel Series; the same look has been maintained, usually with clothing differences (the only partially different frame look is the Gretel Mark II, due to her/it being shorter than the other renditions). A robot from the Gretel Series has made an appearance in every TimeSplitters thus far, from the Original version forward, the edition being the same as the number TimeSplitters game it is.