Wait, let me check. There's a Rachel Steele character in the 1974 Wonder Woman series played by Lynda Carter. She's a supporting character. The main character is Diana Prince, alias Wonder Woman. Rachel is her lover, Steve Trevor. Maybe the user made a mistake in the name. Alternatively, maybe the user is referring to a different Rachel Steele from another show. Wait, there's a book "Wonder Woman: Warbringer" by Leigh Bardugo, but that's a different adaptation. Also, maybe the user is confusing Rachel Steele with Steve Trevor. Alternatively, maybe it's referring to a lesser-known character. Hmm.