| ActionSequence |
| Array |
| ArrayedContents |
| Association |
| Behavior |
| BlockClosure |
| Boolean |
| Class |
| ClassBuilder |
| Collection |
| CompiledMethod |
| ComposedAssociations |
| DateTime |
| Dictionary |
| Error |
| EvaluableAction |
| EventManager |
| Exception |
| HashedSet |
| KeyedCollection |
| LinkMessage |
| Message |
| MessageNotUnderstood |
| Metaclass |
| Number |
| Object |
| Point |
| PoolDictionary |
| Random |
| Rectangle |
| RegularExpression |
| SequenceableCollection |
| Set |
| Smalltalk |
| Stream |
| String |
| StringStream |
| UndefinedObject |