Kopell made memorable recurring appearances as KAOS agent Siegfried in Get Smart, Alan-a-Dale in When Things Were Rotten, Jerry Bauman in That Girl and Louie Pallucci in The Doris Day Show.
All Things Considered | Dirty Rotten Scoundrels | Things to Come | Dirty Rotten Scoundrels (film) | The Pretty Things | Where the Wild Things Are | Rotten Tomatoes | Wild Things | The Shape of Things | Linens 'n Things | Kids Say the Darndest Things | 10 Things I Hate About You | Things Fall Apart | The God of Small Things | My Favorite Things | First Things | Things the Grandchildren Should Know | Things That Make You Go Hmmm... | Things That Go Pump in the Night | Things Behind the Sun | Terrible Things | Rotten Rita | Dirty Rotten Scoundrels (musical) | All the Things She Said | Where the Wild Things Are (film) | Where The Wild Things Are | Very Bad Things | Those Things | Things Worth Fighting For | Things We Lost in the Fire |