Casting for educational games about math

Seeking to cast a diverse set of characters for this project, so if you know anyone who might fit these roles please share the details below.
– Irina: female with a natural Eastern-European accent age 40s
– Ed: male (Trans) Native Hawaiian or Pacific Islander aged 20-30
– Irwin: southern caucasian male actor portraying ages 7 and 12
– Fatima: Middle-Eastern female age 60s
– Helga: Caucasian female (trans) age 20s
– Darby: Native American in her 20s
Roles are non-union.
Actors will be recording from their home studios (home studio required) and will be directed remotely by the client, at Amplify Education, who are based in NYC and/or by myself, based in Austin, Texas (USA)