A play set, comprising: a base unit and two or more characters configured to couple with the base unit such that, when coupled, the base unit and the characters form a toy for interaction with a child; the base unit comprising two or more first connectors that each include a plurality of electrical contacts and associated identification circuitry for identifying the corresponding first connector; each character comprising a second connector configured to engage a first connector of the base unit and electrically couple circuitry of the character to the plurality of electrical contacts of an engaged first connector, wherein the circuitry of the character comprises a memory and a processor, wherein the memory is configured to store a plurality of base unit and/or character responses, each response corresponding to an identifier identifying a first connector of the base unit, and wherein the processor of the character is configured to: identify the engaged first connector by obtaining an identifier from the associated identification circuitry of the engaged first connector; and generate a response from the plurality of responses stored in the memory which corresponds to the obtained identifier; wherein the first connectors of the base unit are coupled together via one or more wires and the characters are configured to communicate via the one or more wires when the characters are both engaged to first connectors of the base unit. a base unit and two or more characters configured to couple with the base unit such that, when coupled, the base unit and the characters form a toy for interaction with a child; the base unit comprising two or more first connectors that each include a plurality of electrical contacts and associated identification circuitry for identifying the corresponding first connector; each character comprising a second connector configured to engage a first connector of the base unit and electrically couple circuitry of the character to the plurality of electrical contacts of an engaged first connector, wherein the circuitry of the character comprises a memory and a processor, wherein the memory is configured to store a plurality of base unit and/or character responses, each response corresponding to an identifier identifying a first connector of the base unit, and wherein the processor of the character is configured to: identify the engaged first connector by obtaining an identifier from the associated identification circuitry of the engaged first connector; and generate a response from the plurality of responses stored in the memory which corresponds to the obtained identifier; wherein the first connectors of the base unit are coupled together via one or more wires and the characters are configured to communicate via the one or more wires when the characters are both engaged to first connectors of the base unit. identify the engaged first connector by obtaining an identifier from the associated identification circuitry of the engaged first connector; and generate a response from the plurality of responses stored in the memory which corresponds to the obtained identifier; wherein the first connectors of the base unit are coupled together via one or more wires and the characters are configured to communicate via the one or more wires when the characters are both engaged to first connectors of the base unit.