Khailah Johnson, meanwhile, will play Ladonna, a high maintenance Miami party girl who disappeared on her 21st birthday.
The Arrow alum will play Rev Johnson, a man of faith and compassion, who was raised in a powerful and affluent church family but disappeared in the 1990s.
Rev Johnson is accustomed to the power and clout afforded by his position, and he will emerge as a natural leader among the 4400.
Ladonna comes across as spoiled and vapid at first but will end up tapping into her own potential in ways she never expected.