Penny Marshall and Cindy Williams in Laverne & Shirley (1976)

Penny Marshall and Alyson Stoner in Alice Upside Down (2007)

Penny Marshall and Bob Newhart in The Bob Newhart Show (1972)

Penny Marshall in The Bob Newhart Show (1972)

Danny DeVito, Penny Marshall, and Judd Hirsch in Taxi (1978)

Penny Marshall and Rosie O'Donnell in Saturday Night Live (1975)

Penny Marshall in Staten Island Summer (2015)

Farrah Fawcett and Penny Marshall in Battle of the Network Stars (1976)

Carrie Fisher, Penny Marshall, and Hugh Hefner in Laverne & Shirley (1976)

Penny Marshall, Matthew Perry, and Thomas Lennon in The Odd Couple (2015)

Penny Marshall and Cindy Williams in The Laverne & Shirley Reunion (1995)

Penny Marshall in The Mary Tyler Moore Show (1970)

Penny Marshall and Fred Armisen in Portlandia (2011)

William Shatner and Penny Marshall in Shatner's Raw Nerve (2008)

Penny Marshall, Vicki Lawrence, and Cindy Williams in Laverne & Shirley (1976)

Penny Marshall, Betty Garrett, Eddie Mekka, and Cindy Williams in Laverne & Shirley (1976)

Penny Marshall, David L. Lander, Michael McKean, and Cindy Williams in Laverne & Shirley (1976)

Penny Marshall, David L. Lander, Michael McKean, and Cindy Williams in The Laverne & Shirley Reunion (1995)