Objective Tcl, by Pedja Bogdanovich, was a proprietary bridge between Objective C and Tcl, circa 1996.
[http://www.usenix.org/legacy/publications/library/proceedings/tcl95/bogdanovich.html%|%Objective-Tcl: An Object-Oriented Tcl Environment] ,Pedja Bogdanovich , [Third Annual Tcl/Tk Workshop] ,1995
An advanced object-oriented environment for NEXTSTEP/OpenStep. It provides full access to and from Objective-C. Discussions of ObjectiveBrowser, a class browser which can be used to interact with live objects, also occur here.
historic website: http://www.tiptop.com/