"Baby Daddy" is welcoming a very special guest on Wednesday's (June 22) episode, appropriately titled "Not So Great Grandma," in the form of TV veteran Loni Anderson ("WKRP in Cincinnati").

Anderson is playing Nana Lyle, mother to Bonnie (Melissa Peterman), who has never met her great-granddaughter.

As Ben (Jean-Luc Bilodeau) tells his mom in Zap2it's exclusive sneak peek, "Nana Lyle is coming ... She needs to meet Emma."

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"OK, fine, just make sure that you give me a little warning before she gets here," says Bonnie, as her mother comes crashing into the apartment.

"Cancel your plans, boys. You've got a hot date with your Grandma Lyle!" says Anderson, before whipping out a stack of bills from inside her shirt and making it raiiiinnnn!

"Why am I not shocked they're all ones?" says Bonnie dryly.

To find out how the rest of Nana Lyle's visit goes, tune in to "Baby Daddy" Wednesday, June 22 at 8:30 p.m. ET/PT on Freeform.

Posted by:Andrea Reiher

TV critic by way of law school, Andrea Reiher enjoys everything from highbrow drama to clever comedy to the best reality TV has to offer. Her TV heroes include CJ Cregg, Spencer Hastings, Diane Lockhart, Juliet O'Hara and Buffy Summers. TV words to live by: "I'm a slayer, ask me how."