| Actor | Role |
|---|---|
 Arthur V. JohnsonJohn Diggs - Scientist | John Diggs - Scientist |
 Lottie BriscoePearl Diggs | Pearl Diggs |
 Eleanor BlanchardPearl's Mother | Pearl's Mother |
 Howard M. MitchellNot listed | Not listed |
 Bernard SiegelNot listed | Not listed |
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| Actor | Role |
|---|---|
| Arthur V. JohnsonJohn Diggs - Scientist | John Diggs - Scientist |
| Lottie BriscoePearl Diggs | Pearl Diggs |
| Eleanor BlanchardPearl's Mother | Pearl's Mother |
| Howard M. MitchellNot listed | Not listed |
| Bernard SiegelNot listed | Not listed |